000 00269nam a2200109Ia 4500
008 220201s1990 xx 000 0 eng d
100 _aMishra, PC
245 0 _aFundamentals of air +water pollution
260 _bDelhi: Aashish Pub
_c1990
300 _a143
942 _2ddc
999 _c85942
_d85942