RABY, Namika MERREY, Douglas J. Professional management in irrication systems: a case study of performance contr /[by] Namika Raby, Douglas J.Merrey - Colombo International Irrication Manaement Institute 1989 - xx, 97 p. Includes glossary, references and appendix. ISBN: 9290901195 Dewey Class. No.: 631.7 / RAB