Trigonometry / 
Fe N. Reyes ; Rene P. Felix ; Felina G. Mapa ; Jesusa T. Tangco. 
 - 2nd edition. 
 - Mandaluyong City :  National Book Store,  2000. 
 - vii, 394 p. :  black and white illustrations ;  22 cm.,  paperback. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9710861328 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.<br/>Trigonometry--Problems, exercises, etc.
<br/><br/><label>Dewey Class. No.: </label>FIL 516.24 T73 2000