Gupta Prem Kumar Hira D.S. <br/><br/>
Operations research / 
Gupta Prem Kumar Hira D.S. 
 -  S. Chand & Co. Nai Delhi 
 - 1377 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>658.4034  / GUPO