Wilkes, F. M. <br/><br/>
Elements of operational research / 
F.M. Wilkes 
 - London :  McGraw-Hill,  1980 
 - 343 p. :  ill. ;  23 cm. 
<br/><br/>Bibliography: p.337 and indexes 
<br/><br/><label>ISBN: </label>0070845468 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Operations research