000 00457nam a2200181Ia 4500
001 98718
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082 _a628
_bAYT
090 _c24388
_d24388
100 _aAyodhya Singh
245 _aTextbook of environmental chemistry
_hBOOK
260 _aNew Delhi
_bCampus Books
_c22
300 _bxii, 542p
546 _aeng
650 _aEnvironmental chemistry
942 _cBOOK
_k628 AYT
999 _c21615
_d21615