Postel, Sandra Water for agriculture : facing the limits / Sandra Postel - Washington : Worldwatch Institute (WI) , 1989 - 54p. : ill. ; 20 cm. - Worldwatch paper No. 93 . Includes bibliographical references. ISBN: 0916468941 Subjects--Topical Terms: WaterIrrigationAgriculture Gov. Doc. Class. No.: US WI P-93