Campbell.D.E. Design and operation of irrigation systems for smallholder agriculture in South Asia - Food and Agriculture Organization of the United Nations. Rome 1986 - 143p. Cht.,Fig and Table - FAO Investment Centre Technical Paper 3/2 . ISBN: 92-5-102481-2 Nat. Bib. No.: 5811 Subjects--Topical Terms: Agriculture Universal Decimal Class. No.: 631.67 / CAM