O.P.Gupta <br/><br/>
Objective type questions and answers in Chemical Engineering / 
O.P.Gupta 
 - New Delhi  Khanna Publisher  2008 
 - 822p. 
<br/><br/><label>ISBN: </label>81-7409-141-6 
<br/><br/><label>Dewey Class. No.: </label>660 G9775 O