Gupta, P. K.  1933- <br/><br/>
Operations research  [Book] / 
by Prem Kumar Gupta, D.S. Hira. 
 - 3rd ed. 
 - Ram Nagar, New Delhi :  S. Chand & Company Ltd.,  c1979. 
 - xvi, 1055 p. :  ill. ;  21 cm. 
<br/><br/> Original version published in 1992. 
<br/><br/> All. 
<br/><br/><label>ISBN: </label>8121902819 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operations research.
<br/><br/><label>Dewey Class. No.: </label>519.7