Stewart, Mark A . <br/><br/>
Peterson's master the GMAT 2012 / 
Mark A. Stewart. 
 - Eighteenth edition 
 - Lawrenceville, NJ :  Peterson's,  2011. 
 - 710 p. :  ill. ; + 1 CD-ROM. ;  28 cm. 
<br/><br/><label>ISBN: </label>978-0-7689-3143-3 0-7689-3143-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics