Gupta , P.K. . <br/><br/>
Problems in Operations Research: Methods and Solutions /  Textual Documents 
P.K. Gupta and Man Mohan. 
 - 7th ed. / 
 - New Delhi :  Sultan Chand & Sons ,  1995. 
 - xiv, 904p. ;  21cm. 
<br/><br/><label>Subjects--Index Terms: </label>Mathematics-Operations Research Operations Research PG-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>519