Favila, Raymundo A. <br/><br/>
Modern trigonometry :   from the function standpoint /  
Raymundo A. Favila and Esther Z. Doval Santos. 
 - [S.l.] :  National Bookstore,   1976. 
 - xiii, 293 pages :   illustration ;  22 centimeter. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>9710807811 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>Dewey Class. No.: </label>FIL 516.24 F27m 1976