The official guide companion 
Manhattan 
 - 12th ed 
 - New York  Manhattan GMAT  c2010 
 - 259 p. : ill. ; 28 cm 
<br/><br/><label>ISBN: </label>9780984178018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management
<br/><br/><label>Dewey Class. No.: </label>650.076 MAN