Drooyan, Irving. <br/><br/>
Trigonometry :  an analytic approach / 
by Irving Drooyan, Walter Hadel, and Charles C. Carico. 
 - 5th. ed. 
 - New York and London :  Macmillan Publishing Company and Collier Macmillan Publishers,  1987. 
 - xi, 396p. :  col. ill. ;  24cm. 
<br/><br/> Includes appendices, answers to odd-numbered exercises, index, and summary. 
<br/><br/> Young Adult 
<br/><br/>
<br/><br/><label>ISBN: </label>0023306505 
<br/><br/><label>LCCN: </label>85-23172 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry, Plane.
<br/><br/><label>LC Class. No.: </label>QA 533  / D76 1983