15th Congress on Irrigation and Drainage-Netherlands 1993. Water Management in the Next Century - International Commission on Irrigation and Drainage New Delhi 1993 - 436p. Cht.,Fig and Table - Volume- 1-E Question 45 (R1-R29) . ISBN: 81-85068-38-0 Nat. Bib. No.: 6558 Subjects--Topical Terms: Engineering Universal Decimal Class. No.: 626.31 / CON