000 00294nam a2200109Ia 4500
008 240109s2015 xx 000 0 und d
041 _aeng
082 _a620
100 _aGupta O. P.
245 _aObjective type questions & Answerning Chemical Engg.
260 _aNew Delhi
_bKhanna Pub.
_c2015
999 _c1018914
_d1018914