Sparks, Fred W <br/><br/>
Plane trigonometry / 
Fred W. Sparks, Paul K. Rees, Charles Sparks Rees. 
 - 8th ed. 
 - Englewood Cliffs, New Jersey :  Prentice Hall,  c1984. 
 - xiv, 331 p. :  ill. ;  25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>0136792251 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry, Plane.
<br/><br/><label>LC Class. No.: </label>QA 533 S62 1984 CIRC