000 00299nam a2200133Ia 4500
100 _aDhaliwal,G.S.
365 _b150
942 _cBK
654 _a
245 _aFundamemtal of Environmental science
260 _aNew Delhi
_bKalyani Publishers
_c1996
082 _a574.5
300 _bHb
_a(12),374
999 _c373744
_d373744
041 _aeng