Precalculus :  graphs and models : a unit circle approach / 
Marvin L. Bittinger ... [et al.]. 
 - Boston :  Addison-Wesley,  c2001. 
 - xviii, 793 p. :  ill. (some col.) ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0201616750 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra.<br/>Algebra--Graphic methods.<br/>Trigonometry.<br/>Trigonometry--Graphic methods.
<br/><br/><label>LC Class. No.: </label>QA154.2  / .P725 2001