TY - BOOK AU - Ramakrishnan,P.S. TI - Shifting agriculture and sustainable development of North-Eastern India SN - 8120416252 U1 - 333.76130954 23 PY - 1992/// CY - New Delhi PB - Oxford & IBH Pub. Co. KW - Shifting cultivation KW - India N1 - Includes bibliographical references and index ER -