000 00293nam a2200121Ia 4500
008 161121s9999 xx 000 0 und d
100 _aTYAGI ; MEHRA
245 0 _aTextbook of environmental chemistry
260 _cAnmol Pulication Pvt. Ltd.
365 _b0
650 _aNIL
942 _cBK
_07
999 _c96431
_d96431