Plusquelle, Herve The gezia irrigation scheme in sudan : Obectives, design and performance / Herve Plusquelle - Washington : The World Bank (WB) , 1990 - 90p. : ill. ; 25 cm. - WB Technical Paper No. 120 . Includes bibliographical reference ISBN: 0821315366 ISSN: 02537494 Subjects--Topical Terms: performance irrigation Gov. Doc. Class. No.: UN WB TP-120