na INLIS000000000003418 Ind 0010-1118003418 Irrigation management for diversified cropping in rice-based systems in the Philippines VALERA, Alfredo Alfredo Valera Colombo IIMI 1992 xvi, 74 p.: ill.; 20 cm.-- xvi, 74 p.: ill.; 20 cm.-- 92-9090-142-X 633.18-167 IRRIGATION SYSTEMS PHILIPPINES ORYZA SATIVA 574/93