Mayol, Wilberto E. <br/><br/>
logic and critical thionking : A college textbook 

 - Quezon City    HisGoPhil Publishing House  2009 
 - 263 p.  Includes bibliographical and index I 
<br/><br/><label>ISBN: </label>978-971-94567-0-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic -- Study and teaching
<br/><br/><label>Dewey Class. No.: </label>Fiil 160 L83