Trigonometry 
Leithold, Louis. 
 -  Addison-Wesley Publishing Company,  1989 
 - xv, 320, 78, 7 p. 
<br/><br/>
<br/><br/><label>ISBN: </label>9-71110671-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>512.13 L53t 1989