00342nam a2200097Ia 4500008004100000082002200041100001400063245010700077260005200184300000800236140113s9999    xx            000 0 und d  a631.8(082.2)   L2  aAnonymous  aSeminar on recent advances in fertilizer technology. 1972. Proceedings held at New Delhi in Jan. 1972.  a1972bFerilizer Association of IndiacNew Delhi  a269