Leithold, Louis. <br/><br/>
Trigonometry / 
Louis Leithold. 
 - Quezon City :  JMC Press,  1989. 
 - 1 v. (various pagings) : ill. 
<br/><br/> Includes appendix and index. 
<br/><br/> Excerpts from the author's College algebra and trigonometry. 
<br/><br/><label>ISBN: </label>971110671X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.