Reyes, Edgardo A. <br/><br/>
Plane trigonometry :  simplified and integrated / 
by Edgardo A. Reyes. 
 - Manila :  National Bookstore,  1979, c1963. 
 - xii, 241 p. : ill. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>971-08-0783-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry, Plane<br/>Logarithms