000 00238nam a22001097a 4500
082 _a577.14
100 _aSHARMA B.K
245 _aENVIRONMENTAL CHEMISTRY
260 _aMEERUT
_bKRISHNA PARKASHAN
_c2014
300 _a1416 P
942 _cBK
999 _c7813
_d7813