000 00279nam a2200109Ia 4500
008 220201s1998 xx 000 0 eng d
100 _aMASTERS, G.M.
245 0 _aINTRODUCTION TO ENVIRONMENTAL ENGINEERING & SCIENCE
260 _aDELHI
_bPHI
_c1998
300 _a460
942 _2ddc
999 _c67865
_d67865