Ravindran, A. <br/><br/>
Operations resarch   principles and practice 
A. Ravindran 
 - 2nd ed. 
 - New York  John Willy  1987 
 - xi, 637p. 
<br/><br/><label>ISBN: </label>047185980X 
<br/><br/><label>Dewey Class. No.: </label>001.424 R197O-2