Elements of logic an integrative approach / 
Maboloc,Christopher Ryan B. ; Pascual II,  Edgar B. 
 - 1st ed. 
 - Manila :  Rex Book Store,  2008. 
 - xi,142p.;22.1cm. 
<br/><br/>includes glossary, references,index 
<br/><br/><label>ISBN: </label>9789712351860 
<br/><br/><label>Dewey Class. No.: </label>Fil 160 M112 2008