Ron Larson, Robert Hostetler & Bruce H. Edwards <br/><br/>
Precalculus:A Graphing Approach 

 - 5th ed 
 -   Houghton Mifflin Company  ©2008 
<br/><br/><label>ISBN: </label>9780618854639  566 
<br/><br/><label>Dewey Class. No.: </label>512.13/LAR