Gupta, Prem Kumar <br/><br/>
Operations research in introduction 
Prem Kumar Gupta 
 - 2nd ed. 
 - New Delhi  S. Chand  1990 
 - vii, 198p 
<br/><br/><label>ISBN: </label>8121902819 
<br/><br/><label>Dewey Class. No.: </label>003 G959O-2