Ardales, Venancio B. <br/><br/>
Logic made easy / 
Venancio B. Ardales. 
 - 2nd./ed. 
 - xi, 179p :  illustrations ;  22cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>9718581073 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.