FAO 1977. Crop water requirements (revised). Irrigation and Drainage Paper 24. J. Doorenbos and W.O. Pruitt. Rome.
FAO 1976. Agro-meteorological field stations. Irrigation and Drainage Paper 27. J. Doorenbos. Rome.
FAO 1979. Yield response to water. Irrigation and Drainage Paper 33. J. Doorenbos and A.H. Kassam. Rome.
Stern P. 1979. Small Scale Irrigation. Intermediate Technology Publications, London, and International Irrigation Information Center, Bet Dagan.
Withers B. and Vipond S. 1974. Irrigation Design and Practice. Batsford, London.
