Gupta, Prem Kumar  <br/><br/>
Operations Research 

 - 7th 
 - New Delhi  S. Chand & Co.  2015 
 - 1498 
<br/><br/><label>ISBN: </label>9788121902816 
<br/><br/><label>Dewey Class. No.: </label>658.4034  / GUP/O