Reyes, Edgardo A. <br/><br/>
Plane Trigonometry.  : Simplified and Integrated 

 - 1st/ed. 
 - Philippines :  National Book Store,  c1963. 
 - xii, 241p.  illus. (np)  21cm. 
<br/><br/> Includes index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Plane trigonometry--Problems, exercises, etc.--c1963--Philippines--newsprint<br/>Plane trigonometry--Study and teaching--c1963--Philippines--newsprint