Swokowski, W. Earl <br/><br/>
Fundamentals of trigonometry / 
Earl W. Swokowski 
 - 4th ed. 
 - Boston :  Prindle, Weber and Schmidt,  1978 
<br/><br/><label>ISBN: </label>871502542 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>516.24  / SWO