00259nam a2200097Ia 4500008004100000082002600041100003400067245002700101260002600128300000700154140113s9999    xx            000 0 und d  a633/634 :631.582   J6  a"Mirchandani, T.J. & Sen, S."  aCrop rotation in India  a1956bICARcNew Delhi  a53