Reyes, Fe N. ...[et.al.] <br/><br/>
Trigonometry. 

 - 2nd/ed. 
 - Philippines :  National Book Store,  c2000. 
 - 394p.  illus. (np)  22cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9710861328 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Trigonometry--c2000--Philippines--newsprint