Abbott, M.B., Bathurst, J.C., Cunge, J.A., O'Connell, P.E. y Rasmussen, J. 1986. An introduction to the European Hydrological System - Système Hydrologique Européen "SHE". J. Hydrol. 87: 45-77.
Ackefors, H. y Enell, M. 1992. Pollution loads derived from aquaculture: land-based and water-based systems. En: Workshop on Fish Farm Effluents and their Control in EC Countries. Publicado por el Department of Fishery Biology, Institute for Marine Science, Christian-Albrechts-University of Kiel, Alemania, págs. 3-4.
Andreoli, C.V. 1993. The influence of agriculture on water quality. En: Prevention of Water Pollution by Agriculture and Related Activities. Actas de la Consulta de Experto de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma. págs. 53-65.
Appelgren, B.G. 1994. Agricultural and Environmental Legislation - Lithuania, Informe Técnico. FAO-LEG: TCP/LIT/2352, Programa de Cooperación Técnica, FAO, Roma.
Avcievala, S. 1991. The nature of water pollution in developing countries. Natural Resources Series No. 26. Departamento de Cooperación Técnica para el Desarrollo, Naciones Unidas, Nueva York.
Banco Mundial, Bank, 1993. La ordenación de los recursos hídricos. Documento de política, World Bank, Washington, DC.
Banco Mundial, 1992. Informe sobre el desarrollo mundial 1992: desarrollo y medio ambiente. Banco Mundial, Washington.
Bangay, G.E. 1976. Livestock and poultry wastes in the Great Lakes Basin: environmental concerns and management issues. Social Science Series No. 15. Ministerio del Medio Ambiente del Canadá.
Barg, U.C. 1992. Guidelines for the promotion of environmental management of coastal aquaculture development. FAO Fisheries Technical Paper 328. FAO, Roma.
Beasley, D.B. y Huggins, L.F. 1981 ANSWERS Users Manual. US-EPA 905/9-82-001. US Environmental Protection Agency, Washington DC.
Braune, E. y Looser, U. 1989. Cost impacts of sediments in South Africa rivers. En: Sediment and the Environment. R.F. Hadley and E.D. Ongley (comps.). Publicación de la AICH No. 184. Asociación Internacional de Ciencias Hidrológicas, Wallingford, Reino Unido, págs. 131-143.
Bushway, R.J., Perkins, B., Savage, S.A., Lekousi, S.L. y Ferguson, B.S. 1988. Determination of atrazine residues in water and soil by enzyme immunoassay. Bull. Environmental Contamination and Toxicology 42: 899-904.
Cairns, J. 1977. Aquatic ecosystem assimilative capacity. Fisheries 2: 5-7.
Cairns, J. 1989. Applied ecotoxicology and methodology. En: Aquatic Ecotoxicology: fundamental concepts and methodologies. Vol. 2. A. Boudou y F. Ribeyre (comps.). CRC Press, Boca Raton, Florida, págs. 275-290.
Calamari, D. y Barg, U. 1993. Hazard assessment of agricultural chemicals by simple simulation models. En: Prevention of Water Pollution by Agriculture and Related Activities. Actas de la Consulta de Expertos de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma. págs. 207-222.
Calamari, D. Naeve, H. 1994. Review of Pollution in the African Aquatic Environment. Comité de Pesca Continental para África (CPCA), Documento Técnico No. 25. FAO, Roma.
Carvalho, N. de O. 1988. Sediment yield in the Velhas River Basin (Minas Geerais, Brazil). En: Sediment Budgets. M. Bordas y D.E. Walling (comps.). Actas del Simposio de Porto Alegre. Publicación de la AICH No. 174. págs. 369-375.
CCREM. n.d. Canadian Water Quality Guidelines. Canadian Council of Resource and Environment Ministers (CCREM), preparado por Dirección de Conservación de Ecosistemas, Ministerio del Medio Ambiente del Canadá, Ottawa, (actualizado periódicamente).
CEPE. 1992. Protection of Inland Waters Against Eutrophication. Comisión Económica de las Naciones Unidas para Europa, Documento # ECE/ENVWA/26, Ginebra.
Chapman, D. 1992. Water Quality Assessments. Chapman and Hall, London.
Chaves, H.M.L. 1991. Análise global de sensibilidade dos parâmetros da equaçao universal de perda de solo modificada (MUSLE). R. bras. Ci. Solo, Campinas, 15: 345-350.
CNUMAD. 1992. Programa 21 de la Conferencia de las Naciones Unidas sobre el Medio Ambiente y el Desarrollo. Naciones Unidas, Nueva York.
Convey, G.R. y Pretty, J.N. 1988. Fertilizer risks in the developing countries: a review. International Institute for Environment and Development, London.
Coote, D.R. y Hore, F.R. 1978. Pollution Potential of Cattle Feedlots and Manure Storages in the Canadian Great Lakes Basin. International Joint Commission PLUARG Report, Windsor, Ontario.
Crowe, A.S. y Mutch, J.P. 1994. An expert systems approach for assessing the potential for pesticide contamination of ground water. Ground Water 32: 487-498.
Crowe, A.S. y Booty, W.G. 1995. A multi-level assessment methodology for determining the potential for groundwater contamination by pesticides. Environ. Monit. Assess. 35: 239-261.
Danish Environmental Protection Agency. 1993. Oversigt over revurderingen 1988, 1989, 1990, 1991 og 1992. [Revisión de la reevaluación de los plagauicidas ya aprobados en 1988,1989, 1990, 1991 y 1992, en aplicación de normas más estrictas], según información del WWF, 1992.
Du Plessis. 1985. Citado in Braune, E. y Looser, U. 1988. Cost impacts of sediments in South African rivers. En: Sediment and the Environment. 1989. R.F. Hadley y E.D. Ongley (comps.). Publicación de la AICH No. No. 184, Asociación Internacional de Ciencias Hidrológicas, Wallingford, Reino Unido. págs. 131-143.
Economopoulos, A.P. 1993. Assessment of Sources of Air, Water, and Land Pollution: A guide to rapid source inventory techniques and their use in formulating environmental control strategies. (2 Vols.). Environmental Technology Series, WHO/PEP/GETNET/93.1-A. Organización Mundial de la Salud, Ginebra.
EEA. 1994. European River and Lakes: Assessment of their environmental state. Agencia Europea del Medio Ambiente, Monograph #1, Copenhague, Dinamarca.
Elwell, H.A. y Stocking, M.A. 1982. Developing a simple yet practical method of soil loss estimation. Tropical Agriculture (Trinidad) 59: 43-48.
ESCAP. 1994. Expert Group Meeting on Water Resources, Water Quality and Aquatic Ecosystems. Bangkok, 17-21 Oct. 1994.
FAO. 1994a. Introduction à la gestion conservatoire de l'eau, de la biomasse et de la fertilité des sois (GCES). R. Roose. Bulletin Pédologique de la FAO No. 70. FAO, Roma.
FAO. 19940. Agricultural and Environmental Legislation - Lithuania, Informe Técnico. B.G. Appelgren. FAO-LEG: TCP/LIT/2352, Programa de Cooperación Técnica, FAO, Roma.
FAO. 1994c. Las políticas de recursos hídricos y la agricultura, capítulo especial del Estado mundial de la agricultura y la alimentación 1993. FAO, Roma.
FAO. 1993a. An overview of pollution of water by agriculture. J.A. Sagardoy. En: Prevention of Water Pollution by Agriculture and Related Activities, Actas de la Consulta de Expertos de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma. págs. 19-26.
FAO. 1993b. Field Measurement of Soil Erosion and Runoff. N.W. Hudson. Boletines de suelos de la FAO No. 68. FAO, Roma.
FAO. 1991. Network on Erosion-Induced Loss in Soil Productivity. Informe de un seminario, Bogor, Indonesia, marzo de 1991. División de Fomento de Tierras y Aguas, FAO, Roma.
FAO. 1990a. Agua y desarrollo agrícola sostenible. Una estrategia para la aplicación del Plan de Acción de Mar del Plata para el decenio de 1990. FAO, Roma.
FAO, 1990b. Código Internacional de Conducta para la Distribución y Utilización de Plaguicidas. FAO, Roma.
FAO. 1987. Soil and water conservation in semi-arid areas. N.W. Hudson. Boletines de suelos de la FAO No. 57. FAO, Roma. 172 p.
FAO. 1986. The cost of soil erosion in Zimbabwe in terms of the loss of three major nutrients. M. Stocking. Consultant's Working Paper No. 3, Soil Conservation Programme, División de Fomento de Tierras y Aguas, FAO, Roma.
FAO. 1985 Erosion-induced loss in soil productivity: a research design. M. Stocking. Consultants Working Paper No. 2, Soil Conservation Programme, División de Fomento de Tierras y Aguas, FAO, Roma.
FAO. 1984. Environmental management for vector control in rice fields. T.H. Mather. Estudios FAO: Riego y Drenaje No. 41, FAO, Roma. 152 págs.
FAO/CEPE. 1991. Legislation and Measures for the Solving of Environmental Problems Resulting from Agricultural Practices (With Particular Reference to Soil, Air and Water), Their Economic Consequences and Impact on Agrarian Structures and Farm Rationalization. Comisión Económica de las Naciones Unidas para Europa, (CEPE) Y FAO, Agri/Agrarian Structures and Farm Rationalization Report No. 7. Naciones Unidas, Ginebra.
GESAMP. 1986. Environmental Capacity. An approach to marine pollution prevention. IMO/FAO/Unesco/WMO/WHO/IAEA/UNEP Joint Group of Experts on the Scientific Aspects of Marine Pollution. Rep. Stud. GESAMP 30: 49 p.
Gilliom, R.J. 1984. Pesticides in rivers of the United States. National Water Summary, 1984. United States Geological Survey Water Supply Paper 2275. Washington DC. págs. 85-92.
Hudson, N.W. 1993. Field measurement of soil erosion and runoff. Boletines de suelos de la FAO No. 68. FAO, Roma.
Hudson, N.W. 1987. Soil and water conservation in semi-arid areas. Boletines de suelos de la FAO No. 57. FAO, Roma. 172 p.
ICWE. 1992. The Dublin Statement and Report of the Conference, International Conference on Water and the Environment: Development Issues for the 21st Century, Dublín, Irlanda.
Ignazi, J.C. 1993. Improving nitrogen management in irrigated, intensely cultivated areas: the approach in France. En: Prevention of Water Pollution by Agriculture and Related Activities. Actas de la Consulta de Expertos de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma. págs. 247-261.
International Joint Commission. 1974. Management Programs, Effects of Research, and Present Land Use Activities on Water Quality of the Great Lakes (2 vols.). Pollution from Land Use Activities Reference Group (PLUARG), International Joint Commission, Windsor, Ontario.
Janus, L.L. and Vollenweider, R.A. 1981. The OECD Cooperative Programme on Eutrophication: Summary Report - Canadian Contribution. Inland Waters Directorate Scientific Series No. 131, Ministerio del Medio Ambiente del Canadá, Burlington, Ontario, Canadá.
Jolankai, G. 1986. Non-point source pollution modelling results for an agricultural watershed in Hungary, En: Land Use Impacts on Aquatic Ecosystems. J. Lauga, Décamps and M.M. Holland. Actas del seminario de Toulouse, MAB-UNESCO & PIREN-CNRS, Francia, págs. 165-189.
Joly, C. 1993. Plant nutrient management and the environment, En: Prevention of Water Pollution by Agriculture and Related Activities. Actas de la Consulta de Expertos de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma. págs. 223-245.
Jonsson, E., Emmerman, A, y Norberg, H. 1990. Problemområ den I yttremiijön vid kemisk bekämpning - förslag till åtärdr. Rapport utarbedet av lantbrukisstyrelsens arbetsgmpp "Yttre miljö - kantzoner". Lantbruksstyrelsens rapport 1991: 2 Jönköping, Sverige. (As reported in WWF, 1992).
Kamrin, M. 1995. Environmental Hormones. Discussion paper taken from EXTOXNET of the Internet. Access en WWW a través de http://www.oes.orst.edu:70/l/ext, elija EXTOXNET.
Karickhoff, S.W. 1981. Semiempirical estimation of sorption of hydrophobic pollutants on natural sediments and soils. Chemosphere 10: 833-846.
Keddy, C, Greene, J.C. y Bonnell, M.A. 1994. A Review of Whole Organism Bioassays for Assessing the Quality of Soil, Freshwater Sediment, and Freshwater in Canada. Scientific Series No. 198. Dirección de Conservación de Ecosistemas, Ministerio del Medio Ambiente del Canadá, Ottawa.
Knisel, W.G. 1980. CREAMS: A Field Scale Model for Chemicals, Runoff, and Erosion from Agricultural Management Systems. Conservation Research Report No. 26. US Department of Agriculture, Washington DC.
Kristensen, P. y Hansen, H.O, (comps.). 1994. European Rivers and Lakes: Assessment of their Environmental State. Preparado por el Ministerio de Medio Ambiente y Energía de Dinamarca para la Agencia Europea del Medio Ambiente, EEA Environmental Monographs 1, Agencia Europea del Medio Ambiente, Copenhague, Dinamarca.
Lampman, W. 1995. Susceptibility of groundwater to pesticide and nitrate contamination in predisposed areas of southwestern Ontario. Water Qual. Res. Jour. Canada 30: 443-468.
Lane, L.J. y Nearings, M.A. (comps.). 1989. USDA + Water Erosion Prediction Project: Hillslope Profile Model Documentation. NSERL Report No. 2. USDA-ARS National Soil Erosion Research Laboratory, West Layfayette. IN.
Lawrence, A.R. y Kumppnarachi. 1986. Impact of agriculture on groundwater quality in Kalpitiya, Sri Lanka. British Geological Survey. Report WD/03/86/20.
McElroy, A.D., Chiu, A.D., Nebgen, S.Y., Aleti, J.E. y Bennett, F.W. 1976. Loading Functions for Assessment of Water Pollution fron Nonpoint Sources. EPA-600/2-76-151, US Environmental Protection Agency, Washington DC.
Mackay, D. y Paterson, S. 1991. Evaluating the multimedia fate of organic chemicals: a Level III fugacity model. Environ. Sci. Techn. 25: 427-436.
Mather, T.H. 1984. Environmental management for vector control in rice fields. Estudios FAO: Riego y Drenaje No. 41, FAO, Roma. 152 págs.
Meade, R.H. y Trimble, S.W. 1974. Changes in sediment loads in rivers of the Atlantic drainage of the United States since 1900. Int. Ass. Hydrol. Sci., Publ. No. 113, 99-104.
Metcalfe-Smith, J.L. 1994. Biological water-quality assessment of rivers: use of macroinvertebrate communities. En: The Rivers Handbook (Vol. 2). P. Calow and G.E. Petts (comps.). Blackweil Scientific Publications, London. págs. 144-170.
Milliman, J.D. y Meade, R.H. 1983. World-wide delivery of river sediment to the oceans, J. Geol. 91: 1-21.
Milliman, J.D. y Syvitski. 1992. Geomorphic/tectonic control of sediment discharge to the ocean: the importance of small mountain rivers. J. Geology 100: 525-544.
Milis, W.B. et al. 1985. Water Quality Assessment: A Screening Procedure for Toxic and Conventional Pollutants, EPA-600/6-82-004a & b, Volumes I and II. U.S. Environmental Protection Agency, Washington DC.
Ministry of Public Health, Thailand. 1986. Review of Water Quality Monitoring programme in Thailand. Environmental Health Division, Bangkok.
Munkittrick. K.R., Servos, M.R., Parrott, J.L., Martin, V., Carey, J.H., Flett, P.A. y Van Der Kraak, G.J. 1994. Identification of lampricide formulations as a potent inducer of MFO activity in fish. J. Great Lakes Research 20: 355-365.
Naciones Unidas. 1992. Protección de la calidad y el suministro de los recursos de agua dulce: aplicación de criterios integrados para el aprovechamiento, ordenación y uso de los recursos de agua dulce. Capítulo 18, Programa 21, Informe de la Conferencia de las naciones Unidas sobre el Medio Ambiente y el Desarrollo. Naciones Unidas, New York.
Nielsen, G.H., Culley, J.L. y Cameron, D.R. 1978. Nitrogen Loading from Agricultural Activities in the Great Lakes Basin. International Joint Commission PLUARG Report. Windsor, Ontario.
Novotny, V. y H. Olem, 1994. Water Quality: Prevention, Identification, and Management of Diffuse Pollution. Van Nostrand Reinhold, New York.
OMAF, 1991. Grower Pesticide Safety Course. Ontario Ministry of Agriculture and Food, Toronto, Ontario, Canada.
Ongley, E.D. 1994. Global water pollution: challenges and opportunities. Proceedings: Integrated Measures to Overcome Barriers to Minimizing Harmful Fluxes from Land to Water. Publication No. 3, Stockholm Water Symposium, 10-14 de agosto de 1993, Estocolmo, Suecia. págs. 23-30.
Ongley, E.D. 1987. Scale effects in fluvial sediment-associated chemical data. Hydrological Processes 1: 171-179.
Ongley, E.D., Krishnappan, B.G., Droppo, I.G., Rao, S.S. y Maguire, R.J. 1992. Cohesive sediment transport: emerging issues for toxic chemical management. Hydrobiologia 235/236: 177-187.
Organización Mundial de la Salud. 1993. Guías para la calidad del agua potable. Volumen 1: Recomendaciones. (Segunda edición), OMS, Ginebra.
Ostry, R.C. 1982. Relationship of water quality and pollutant loads to land uses in adjoining watersheds. Water Resources Bull. 18: 99-104.
PNUMA. 1993. The Aral Sea: Diagnostic study for the development of an Action Plan for the conservation of the Aral Sea. Nairobi.
Quirós, R. 1993. Inland fisheries under constraints by other uses of land and water resources in Argentina. En: Prevention of Water Pollution by Agriculture and Related Activities, Actas de la Consulta de Expertos de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma, págs. 29-44.
Reiff, F.M. 1987. Health aspects of waste-water reuse for irrigation of crops. En: Proceedings of the Interregional Seminar on Non-conventional Water Resources Use in Developing Countries, 22-28 April 1985, Serie No. 22, Naciones Unidas, Nueva York. págs. 245-259.
Reynoldson, T.B. Metcalfe-Smith, J.L. 1992. An overview of the assessment of aquatic ecosystem health using benthic invertebrates. J. Aquatic Ecosystem Health 1: 295-308.
Reynoldson, T.B., Bailey, R.C-, Day, K.E. y Norris, R.H. 1995. Biological guidelines for freshwater sediment based on BEnthic Assessment of SedimenT (the BEAST) using a multivariate approach for predicting biological state. Australian Jour. Ecol. (en imprenta).
Rhoades, J.D. 1993. Reducing salinization of soil and water by improving irrigation and drainage management. En: Prevention of Water Pollution by Agriculture and Related Activities. Actas de la Consulta de Expertos de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma. págs. 291-320.
Rickert, D. 1993. Water quality assessment to determine the nature and extent of water pollution by agriculture and related activities. En: Prevention of Water Pollution by Agriculture and Related Activities. Actas de la Consulta de Expertos de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma. págs. 171-194.
Risk, M.J., Sammarco, P.W. y Schwarcz, H.P. 1994. Cross-continental shelf trends in L13C in coral on the Great Barrier Reef. Mar. Ecol. Prog. Ser. 106: 121-130.
RIVM. 1992. The Environment in Europe: A Global Perspective. National Institute of Public Health and Environmental Protection (RIVM), Países Bajos.
RIZA, 1994. Chemische waterkqaliteitsindices. Institute for Inland Water Management and Waste Water Treatment (RIZA), Ministry of Transport, Public Works and Water Management, Lelystad, Países Bajos.
Roose, E. 1994. Introduction à la gestion conservatoire de l'eau, de la biomasse et de la fertilité des sols (GCES). Bulletin Pédologique de la FAO No. 70. FAO, Roma.
Rosenthal, H. 1992. Environmental impacts: negative and positive aspects. En: Workshop on Fish Farm Effluents and their Control in EC Countries. Publicado por el Department of Fishery Biology, Institute for Marine Science at the Christian-Albrechts-University of Kiel, Alemania, págs. 4-5.
Ryding, S-O. 1986. Identification and quantification of nonpoint source pollution as a base for effective lake management. En: Land Use Impacts on Aquatic Ecosystems. J. Lauga, Décamps and M.M. Holland. Actas del seminario de Toulouse, MAB-UNESCO & PIREN-CNRS, Francia, págs. 127-134.
Sagardoy, J.A. 1993. An overview of pollution of water by agriculture. En: Prevention of Water Pollution by Agriculture and Related Activities, Actas de la Consulta de Expertos de la FAO, Santiago, Chile, 20-23 de octubre de 1992. Water Report 1. FAO, Roma. págs. 19-26.
Schottler, S.P., Elsenreich, S.J. y Capel, P.D. 1994. Atrazine, alachlor and Cyanazine in a large agricultural river system. Environ. Sci. Technol. 28: 1079-1089.
Spires, A. y Miller, M.H. 1978. Contribution of Phosphorus from Agricultural Land to Streams by Surface Runoff. International Joint Commission PLUARG Report. Windsor, Ontario.
Stephenson, G.A. y Solomon, K.R. 1993. Pesticides and the Environment. Department of Environmental Biology, University of Guelph, Guelph, Ontario, Canada.
Stevenson, F.J. 1965. Origin and distribution of nitrogons in soil. En: SOil Nitrogen. W.V. Bartholomew and F.E. Clark (comps.). Amer. Soc. Agron. Madison, Wisconsin.
Stocking, M. 1985. Erosion-Induced Loss in Soil Productivity: A Research Design. Consultants Working Paper No. 2, Soil Conservation Programme, División de Fomentos de Tierras y Aguas, FAO, Roma.
Thurman, E.M., Meyer, M., Pomes, M., Perry, C.A. y Schwab, P. 1990. Enzyme-linked immunoabsorbent assay compared with gas chromatography/mass spectrometry for the determination of triazine herbicides in water. Analytical Chemistry 62(18): 2043-2048.
Torstensson, L. 1990. Bekämpningsmedel I den yttre miljön. Förekomst, spridning, effekter. Litteraturgenomgångoch förslag till forskning. Natrurvåardsverket rapport 3536. Solan, Sverige (según información del WWF, 1992).
USDA. 1983. National Engineering Handbook: Sedimentation. United States Department of Agriculture (USDA), Soil Conservation Service, 2nd Edition.
US-EPA. 1994. National Water Quality Inventory. 1992 Report to Congress. EPA-841-R-94-001. Office of Water, Washington, DC.
US-EPA. 1992. National Pesticide Survey: Update and summary of Phase II results. Office of Water & Office of Pesticides and Toxic Substances, United States Environmental Protection Agency Report # EPA570/9-91-021, Washington DC.
US-EPA. 1989. Rapid Bioassessment Protocols for Use in Streams and River: Benthic macroinvertebrates and Fish. Office of Water, EPA/444/4-89-001, United States Environmental Protection Agency, Washington DC.
US-EPA. 1987. National Water Quality Inventory. 1986 Report to Congress. EPA-440/4-87-008. Office of Water, Washington, DC.
Universidade Federal do Rio Grande do Sul (UFRGS). 1991. Diagnóstico das Condic ‰ es Sedimentológicas dos Principáis RÍOS Brasileiros. Centrais Elétricas Brasileiras S.A. (ELETROBRÁS), Rio de Janeiro.
Vollenweider, R.A. et al. 1980. Conclusions of the OECD Cooperative Programme on Eutrophication. En UNESCO Nature and Resources 16(3).
Walling, D.E. 1983. The sediment delivery problem. J. Hydrol. 65: 209-237.
Walling, D.E. and B.W. 1983. Patterns of sediment yield. In K.J. Gregory (Ed.), Background to Palaeohydrology. Wiley, Nueva York.
Wang, Y.-J. y Lin J.-K. 1995. Estimation of selected phenols in drinking water with in situ acetylation and study on the DNA damaging properties of polychiorinated phenols. Arch. Environ. Contam. Toxicol. 28: 537-542.
White, S. 1988. Sediment yield and availability for two reservoir drainage basins in central Luzono, Philippines. En: Sediment Budgets. M.P. Bordas and D.E. Walling (comps.). IAHS Publ. No. 174. Int. Assoc. Hydrol. Sci., Wallingford, Reino Unido. págs. 575-581.
Wischmeier, W.H. 1976. Use and misuse of the universal soil loss equation, J. Soil Water Conserv. 31, 5-9.
WWF. 1993. Marine Update 13: Marine pollution and pesticide reduction policies. World Wide Fund for Nature, Panda House, Godalming, Surrey, UK.
WWF. 1992. Pesticide reduction programmes in Denmark, the Netherlands, and Sweden. A WWF International Research Report, World Wide Fund for Nature International, Switzerland. (se incluye "The pesticide reduction programme in Denmark: Update", n.d.)
Young, R.A. et al. 1986. Agricultural Nonpoint Source Pollution Model: A Watershed Analysis Tool. USDA-ARS, Morris, MN.
