00428nam a2200145Ia 4500008004100000082001600041100002500057245004000082260004400122300000800166650004100174650003400215653001500249700001800264170901s1980    xx            000 0 und d  a631.7bI-8S  aIgraelsen, Oarsan W. 0aIrrigation Principles And Practices  aPatnabBihar Hindi Granth Academyc1980  a615  aAgriculture and related technologies  aTechnology (Applied sciences)  aIrrigation  aHaisen, V. E.