Swokowski, Earl W.    <br/><br/>
Precalculus :   functions and graphs /  
Earl W. Swokowski, Jeffery A. Cole    
 - 11th ed.    
 - Australia :  Thomson Brooks/Cole,   2008    
 - xviii;various pagination :  ill;   25cm.    
<br/><br/><label>ISBN: </label>049538321X    9780495383215    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra--Graphic methods   <br/>Functions   <br/>Trigonometry