Castillo, Leticia L. <br/><br/>
College algebra and trigonometry / 
Leticia L. Castillo,...[et al.]. 
 - Mandaluyong City :  National Book Store,  2008. 
 - 772 p. : ill. ; 26 cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>9710867989 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Algebra<br/>Trigonometry