Wolfram, Sybil <br/><br/>
Philosophical logic: an introduction 

 - LoNew Delhion" Routledge  1989 
 - xiv,290p.  23 cm. 
<br/><br/><label>ISBN: </label>0415023181 
<br/><br/><label>Dewey Class. No.: </label>160,  / wol