Leithold, Louis. <br/><br/>
Trigonometry / Louis Leithold. 

 - Reading, Mass. : Addison-Wesley, [c1989] 
<br/><br/><label>ISBN: </label>0201170566 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>516.24 LEI