Cruz, Corazon L. <br/><br/>
Introduction to logic / 
Corazon L. Cruz. 
 - 4th 
 - Mandaluyong City :  National Book Store,  1995. 
 - xii, 368 p.: 21.4 cm. 
<br/><br/> Includes bibliography and index 
<br/><br/><br/>English 
<br/><br/><label>ISBN: </label>9710857975 
<br/><br/><label>LC Class. No.: </label>160 C88i