Cohen, David <br/><br/>
Trigonometry/ 
David Cohen 
 - Boston:  Brooks/Cole Publishing Company,  ©1998. 
 - xii, 397 pages, A73, I4:  illustrations;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0-534-50046-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry
<br/><br/><label>Dewey Class. No.: </label>DC 516.24  / C66