00440nam a2200169Ia 4500008004100000020001500041082001600056100001400072245002800086250000600114260003900120300000800159650004100167650003400208653001300242653001500255170901s1999    xx            000 0 und d  a8127224596  a631.7bL47I  aLenka, D. 0aIrrigation And Drainage  a2  aLudhianabKalyani Publishersc1999  a327  aAgriculture and related technologies  aTechnology (Applied sciences)  aDrainage  aIrrigation