00415nam a2200133Ia 4500008004100000082001600041100004300057245005500100260002800155300000800183650004100191650003400232653001500266170901s1978    xx            000 0 und d  a631.7bI-5I  aInternational Rice Reasearch Institute 0aIrrigation Policy And Management in Southeast Asia  aPhilippinesbIRRIc1978  a198  aAgriculture and related technologies  aTechnology (Applied sciences)  aIrrigation