Analytic geometry/ 
Perla S. dela Cruz, Lea D. Madelar and Ma. Theresa Christine C. Valdez 
 - Revised edition 
 - Quezon City:  C & E Publishing,  2013. 
 - 400 pages:  illustrations;  25 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9789719800866 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geometry, Analytic
<br/><br/><label>LC Class. No.: </label>Fil QA 551 .D34 2013