000 00349nam a2200133Ia 4500
008 240913s9999||||xx |||||||||||||| ||und||
082 _aGS 577 AGA/E
100 _aP.S Verma and Agarwal
245 0 _aEnvironmental biology : Principles of Ecology
250 _aNULL
260 _bS Chand and Co
_aNew Delhi
_c1983
300 _a592p
942 _cBKS
999 _c3903
_d3903