Swokowski, Earl William <br/><br/>
Precalculus :  functions and graphs / 
Earl W. Swokowski, Jeffery A. Cole 
 - 12th ed. 
 - Belmont, CA :  Brooks/Cole, Cengage Learning,  2012 
 - xix, 796, 95 p. :  ill. (some color) ;  26 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9780840068576 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions<br/>Algebra--Graphic methods<br/>Trigonometry