Cruz, Corazon L. <br/><br/>
Introduction to logic / 
Corazon L. Cruz 
 - 3rd ed. 
 - Manila:  National Book Store,   c1993. 
 - x, 357p.;  ill. 
<br/><br/>includes bibliographies and index  
<br/><br/><label>ISBN: </label>971-08-5496-8 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic 
<br/><br/><label>Dewey Class. No.: </label>Fil. 160 C957 1993