Beckenbach, Edwin F. <br/><br/>
Modern college algebra and trigonometry / 
Edwin F. Beckenbach, Irvin Drooyan, Michael D. Grady. -- 
 - 5 ed. -- 
 - Belmont, CA. :  Wodsworth,  1968. 
 - xviii, 638 p. :  il. ;  24 cm. 
<br/><br/><label>ISBN: </label>534058868 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra<br/>Trigonometría<br/>Trigonometría plana
<br/><br/><label>Dewey Class. No.: </label>512.13 B394:5