Larson, Ron, <br/><br/>
Trigonometry  
Roland E. Larson, Robert P. Hostetler ; with the assistance of David E. Heyd. 
 - 4th ed. 
 - Boston :  Houghton Mifflin,  c1997 
 - xxiv, 506, 146 p. :  ill. (some col.) ;  24 cm. +  instructor's annotated edition. 
<br/><br/> Includes indexes. 
<br/><br/><label>ISBN: </label>0669417378 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>516.242