Aufmann, Richard N. <br/><br/>
College trigonometry /  
Richard N. Aufmann, Vernon C. Barker, Richard D. Nation. 
 - 3rd ed. 
 - Boston :   Houghton Mifflin, $  c1997. 
 - 1 v. (various pagings) :   ill. (some col.) ;   27 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9780395786451 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>LC Class. No.: </label>QA531   / .A87 1997