00590nam a22001817a 4500 LK-CoNLD 20251229140600.0 251224b |||||||| |||| 00| 0 eng d 9290901187 DOAL En 633.18 DOA International Irrigation Management Institute Research Network on Irrigation Management for Diversified Cropping in Rice-Based Systems P.O. Box 2075, Colombo, Sri Lanaka Information Office, International Irrigation Management Institute 1989 p.148.:ill.:map. BK 59 59 0 0 0 0 REF DOAL DOAL REF 2025-12-24 10723 0 10723 2025-12-24 09:36:01 2025-12-24 REF