000 00426nam a2200157Ia 4500
020 _a81-219-1681-x
041 _aEng
082 _a574.5 Ver-Con
100 _aVerma, P.S.
_91665792
245 _aConcept Of Ecology (1st Ed.)
_b Environmental biology
250 _a1st Ed.
260 _aNew Delhi:
_bS. Chand and company ltd
_c1998
300 _a264p.
650 _aEcology, Environmental Science
_91665793
942 _cBK
999 _c598144
_d598144