Department of International Economic and Social Affairs, Energy Statistics: a Manual for Developing Countries, Studies in Methods, Series F, No. 56, United Nations, 1991
Department of International Economic and Social Affairs, Energy Statistics: Definitions, Units of Measure and Conversion Factors, Studies in Methods, Series F, No. 44, United Nations, 1987
Department of International Economic and Social Affairs, Concepts and Methods in Energy Statistics, with special reference to Energy Accounts and Balances (A Technical Report), Studies in Methods, Series F, No. 29, United Nations, 1982
Classification and definition of forest products, FAO Forestry Paper 32, FAO, 1982
FAO, Wood Energy Today for Tomorrow, Part B: Background overview of available data on wood energy in Europe/OECD, FAO/ FOD/ FOPW, 1997
FAO, Yearbook Forest Products, FAO/FONP, 1994