Williams, H. P. <br/><br/>
Model building in mathematical programming / 
by H. P. Williams 
 - 4th ed. 
 - London :  John Wiley and Sons,  1999. 
<br/><br/><label>ISBN: </label>0471997889  £ 24.95 
<br/><br/><label>Subjects--Index Terms: </label>Mathematical Model 
<br/><br/><label>Dewey Class. No.: </label>519.7