Gupta, P.K. <br/><br/>
Problems in operations research :  methods and solutions. 

 - 12th ed. 
 - New Delhi :  Sultan Chand & Sons.  2009. 
 - 856 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>9788180545641 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Research.
<br/><br/><label>Dewey Class. No.: </label>658.409 GUP