00315nam a2200109Ia 4500008004100000082001300041100006200054245003400116260003700150300001000187650000800197140113s9999    xx            000 0 und d  a632.9 P0  a" Upadhyay, Rajeev K.;  Mukerji, K. G. and Dubey, O. P. "  aIPM system in agriculture v.6  b"New Delhi : Aditya books, 2000"  a564p.  aIPM