ELLENBOGEN,DAVID J. <br/><br/>
Elementary Algebra: Concepts and Applications / 
DAVID J. ELLENBOGEN. 
 - 6TH ED. 
 - NEW YORK:  Addison Wesley,  2001. 
 - 543 1-8 Index Inc P. ; 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Dewey Class. No.: </label>512.9  / DAV