00330nam a2200097Ia 4500008004100000082002000041100001400061245009700075260005200172300000800224140113s9999    xx            000 0 und d  a631.4(540)   L2  aAnonymous  aSeminar on fertilizers in India in th seventies. 1972. Proceedings held at New Delhi in 1972  a1973bFerilizer Association of IndiacNew Delhi  a299