Safadi, Raed. Research on irrigation and drainage technologies : fiften years World Bank experience / Raed Safadi,Herve Plusquellec. - Washington, D.C. : the W. Bank, c1991. - 56 p. ; 28 cm. - World Bank discussion papers, 128 . ISBN: 0821318918 Subjects--Topical Terms: Irrigation--Economic aspects--Research--Developing countries.Drainge--Economic aspect--Research--Developing countries.Irrigation--Research--Developing countries.Drainage--Research--Developing countries. LC Class. No.: HD1741.D44 / S24 1991