TY - BOOK AU - Chatterjee,B.N AU - Maiti ,S AU - Mandal,B.K TI - Cropping System: Theory and Practice SN - 812040419x U1 - 631.58 19 PY - 1997/// CY - New Delhi PB - Oxford & IBH Publishing Co. Pvt. Ltd. KW - Cropping systems N1 - Includes bibliographical references ER -