00261nam a2200097Ia 4500008004100000082002000041100003400061245003000095260003000125300000800155140113s9999    xx            000 0 und d  a631.67:633   M7  a"Prihar, S.S. & Sandhu, B.S."  aIrrigation of field crops  a1987bI.C.A.R.cNew Delhi  a142