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

 - New Delhi  S Chand & Company Ltd  2008 
 - xv,1055,6  PB 
<br/><br/><label>ISBN: </label>8121902819 
<br/><br/><label>Dewey Class. No.: </label>658.4034  /  GUPP