00363nam a2200097Ia 4500008004100000082002400041100003400065245013100099260002700230300000800257140113s9999    xx            000 0 und d  a63[338](082.2)   K9  aAgricultural Society of India  a"Maximization of agricultural production :Proceedings of the first symposium held on Banaras in Sept.,1968. edited by P.K.Sen"  a1969bA.S.I.cCalcutta  a232