000 00278nam a2200121Ia 4500
008 180721s9999 xx 000 0 und d
100 _a"Pandey, G.N.,"
245 0 _aENvironment Engineering
260 _bTata McGraw Hill
260 _c1997
365 _b165.00
942 _cBK
999 _c140188
_d140188