Gupta, Prem Kumar and Hira, D. S. <br/><br/>
Operations Research 

 -  S. Chand & Company Ltd., New Delhi  2005 
 - xvi, 1055 
<br/><br/><label>ISBN: </label>9788121902816 
<br/><br/><label>Dewey Class. No.: </label>Column-60