Sparks, Fred W. <br/><br/>
Plane trigonometry / 
Fred W. Sparks and Paul K. Rees. 
 - 3rd ed.  
 - New York :  Prentice-Hall,  c 1956. 
 - viii, 199 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>313  313 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.<br/>Plane trigonometry.<br/>Triangles.
<br/><br/><label>Dewey Class. No.: </label>514 / S26p