Sparks, Fred W. Rees, Paul K. <br/><br/>
Plane trigonometry 
/Fred W.Sparks, Paul K.Rees 
 - 3rd ed. 
 - New York  Prentice-Hall  1952 
 - viii, 199 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trignometry
<br/><br/><label>Dewey Class. No.: </label>516.24  / SPA