Beckenbach, Edwin F. <br/><br/>
College algebra / 
Edwin F. Beckenbach, Irving Drooyan, Michael D. Grady. 
 - 6th ed. 
 - Belmont, Calif. :  Wadsworth,  c1985. 
 - xvi, 524 p. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0534036538 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.