00274nam a2200097Ia 4500008004100000082004000041100002100081245004000102260002600142300000800168140113s9999    xx            000 0 und d  a"016:631.83'4'5(540) ""1971/75  L8"  a"Tandon, H.L.S."  aNPK in Indian Agriculture (1971-75)  a1978bENSPcNew Delhi  a797