00569nam a2200193Ia 4500 170901s1994 xx 000 0 und d 8185992037 333.716 D30N Deb, D. L. Natural Resources Management for Sustainable Agriculture and Environment New Delhi Angkor Publishers (P) Ltd. 1994 442 Economics Social sciences Conservation of natural resources Environmental aspects Sustainable agriculture ddc BK 2535 2535 0 0 ddc 0 0 RAU RAU 2017-10-18 UBSPD, Patna 0 333.716 D30N 45426 2017-10-18 1996-01-27 BK