00274nam a2200097Ia 4500008004100000082001500041100003400056245003800090260004000128300000800168140113s9999    xx            000 0 und d  a543:63  L6  a"Chopra, S.L. & Kanwar, J.S."  aAnalytical Agricultural Chemistry  a1976bKalyani PublisherscNew Delhi  a518