Douthitt, Cameron B. <br/><br/>
Trigonometry / 

 - New York :  McGraw-Hill,  c1978. 
 - xi, 324 p. :  ill. ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0070176701 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>516 HIL 1978 A032 Or.