Ardales, Venancio B. <br/><br/>
Logic Made Easy. 

 - 2nd./ed 
 - xi, 179p.  index  22cm. 
<br/><br/><label>ISBN: </label>9718581073 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic--1998--Philippines--newsprint