De la Peņa, Carmen R. <br/><br/>
Mathematics I :  basic mathematics for secondary schools / 
Carmen de la Peņa 
 - Revised edition 
 - xi, 302 pages 
<br/><br/><label>ISBN: </label>9710618318 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics
<br/><br/><label>Dewey Class. No.: </label>510