000 00292nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _aSingh K.K
245 0 _a"Air, Water and Soil pollution"
260 _b"Kalyani publishers, New Delhi"
260 _c0
365 _b295.00
942 _cBK
999 _c156914
_d156914