000 00301nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a540
100 _aUppal M M
245 0 _aEngineering Chemistry : Chemical Technology
250 _a8
260 _bKhanna Publishers,New Delhi
_c2015
942 _cBK
999 _c28486
_d28486