Larson, Ron <br/><br/>
Trigonometry/ 
Ron Larson 
 - Seventh edition 
 - Boston:  Houghton Mifflin Company,  c2007. 
 - xvii, 611 pages:  illustrations;  26 cm. 
<br/><br/> Includes appendix and index. 
<br/><br/><label>ISBN: </label>9780618643332 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>DK12 516.24  / L333