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Yield response to water / J. Doorenbos and A.H. Kassam ; with C.L.M. Bentvelsen...[et al.].
- FAO,
- 1979.
- Rome :
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Land evaluation criteria for irrigation : report of an expert consultation held in Rome, 27 February-2 March 1979 / [contrib. by A.J. Smyth...et al.].
- FAO,
- 1979.
- Rome :
-
Economic analysis of forestry projects
- FAO,
- 1979.
- Rome :