GUPTA (Prem Kumar);HIRA (D S). <br/><br/>
Operations research. 

 - New Delhi  S Chand & Company Ltd  2011 
 - xii,1395  PB 
<br/><br/><label>ISBN: </label>8121902819 
<br/><br/><label>Dewey Class. No.: </label>658.4034 GUPP