Salumbides, Epifanio N. Jr. <br/><br/>
Trigonometry :  plane and spherical / 
by Epifanio N. Salumbides, Jr. and Rufo C. Romero. 
 - rev. ed. 
 - Quezon City, Philippines :  Filipino Educators, Inc.,  1963. 
 - x, 103p. :  illus. ;  24cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry.<br/>Spherical trigonometry.
<br/><br/><label>LC Class. No.: </label>FIL QA 531  / S24 1963