Lial, Margaret L. <br/><br/>
Trigonometry/ 
Margaret L. Lial, John Hornsby, David I. Schneider; with the assistance of Callie J. Daniels. 
 - 9th ed. 
 - Boston:  Addison Wesley,  c2009. 
 - 465 p.:  ill.;  23 cm. 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>978-981-0697-32-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>GC 516.24 L693 2009