000 00278nam a2200121Ia 4500
008 220201s1985 xx 000 0 eng d
082 _a540
_bAGG
100 _aAggarwal,OP
245 0 _aEngineering chemistry
260 _bKhanna publisher
_c1985
300 _a852
942 _2ddc
999 _c83358
_d83358