Sparks, Fred W. <br/><br/>
Plane trigonometry / 
Fred W. Sparks ; Paul K. Rees 
 - 3d ed. 
 - New York :  Appleton-Century-Crofts,  1959, [3rd Printing 1953] 
 - viii, 199 p. :  ill ;  25 cm. 
<br/><br/> index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry
<br/><br/><label>Dewey Class. No.: </label>514  / SPP 1959