Solution key for modern trigonometry / 
William Wooton ...(et. al) 
 - Boston :  Houghton Mifflin,  1966. 
 - 165 pages :  illustrations ;  24 cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry, Plane.