Williams, H. Paul  <br/><br/>
Model building in mathematical programming/   	 
H. Paul Williams 
 - Fifth edition 
 - England:  John Wiley and Sons Inc,   c2013.  
 - xx, 411 pages :   illustrations ;   24 cm. 
<br/><br/>Includes bibliographical references and index.<br/> 
<br/><br/><label>ISBN: </label>978-1-118-44333-0 (pbk.)