Willis Alden T. <br/><br/>
Elementary algebra / 
by Alden T. Willis, Carol L. Johnston and Maryu Jo Steig. 
 - 2nd. ed. 
 - California :  Wadsworth Publishing Company,  1987. 
 - x, 388p. :  illus. ;  24cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0-534-07932-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.
<br/><br/><label>LC Class. No.: </label>QA 152.2  / W55 1987