Hornsby, E. John. <br/><br/>
A graphical approach to precalculus with limits :  a unit circle approach / 
John Hornsby, Margaret L. Lial, Gary K. Rockswold. 
 - 5th ed. 
 - Boston :  Addison Wesley,  c2011. 
 - xx, 922, [75] p. :  col. ill ;  29 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0321644735 (student ed.) 0321655044 (annotated instructor's ed.) 9780321644732 
<br/><br/><label>LCCN: </label>2009030523 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Functions--Textbooks.
<br/><br/><label>LC Class. No.: </label>QA331.3  / .H67 2011 
<br/><br/><label>Dewey Class. No.: </label>512/.1