Aufmann, Richard. <br/><br/>
Essentials of college algebra / 
Richard Aufmann, Richard Nation. 
 - 1st ed. 
 - Boston, MA :  Houghton Mifflin Co.,  2005. 
 - p. cm. 
<br/><br/><label>ISBN: </label>0618480978 (instructor's annotated ed.) 061848096X (student ed.) 
<br/><br/><label>LCCN: </label>2004-109016 (student ed.)