Trigonometry /  Fe N. Reyes [and 3 others] 

 - Mandaluyong City, Philippines :   National Book Store  1990 
 - vii, 290 pages :  illustrations ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>971084864 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry.
<br/><br/><label>LC Class. No.: </label>Fil QA5131  / .T734 1990 
<br/><br/><label>Dewey Class. No.: </label>F 514 T734