00277nam a2200097Ia 4500008004100000082001600041100004100057245004000098260003300138300000800171140113s9999    xx            000 0 und d  a631.87   N9  a"Palaniappan, S.P. &  Annadurai, K."  aOrganic Farming : Theory & Practice  a1999bScientia Pub.cJodhpur  a257