na INLIS000000000003361 Ind 0010-1118003361 Moving towards demand-based operations in modernized irrigation systems in Pakistan BANDARAGODA, D.J. D.J. Bandaragoda and M. Badruddin Colombo IIMI 1992 xi, 42 p.: ill.; 20 cm.-- xi, 42 p.: ill.; 20 cm.-- 92-9090-161-6 631.67 IRRIGATION SYSTEMS PAKISTAN 573/93