Angel, Allen R. <br/><br/>
Elementary algebra for college students / 
Allen R. Angel  
 - 4th ed. 
<br/><br/> College of Engineering and Computer Studies  Bachelor of Science in Civil Engineering 
<br/><br/><label>ISBN: </label>0-13-324781-3 
<br/><br/><label>Dewey Class. No.: </label>512.9  An43