Wolfram, Sybil <br/><br/>
Philosophical logic : an introduction 
Sybil Wolfram 
 - London ; New York  Routledge  1989 
 - xiv, 290 p. ; 22 cm 
<br/><br/> Includes index. Bibliography: p. 263-269 
<br/><br/><label>ISBN: </label>9780415023184 
<br/><br/><label>ISSN: </label>88023963 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic
<br/><br/><label>Dewey Class. No.: </label>168 WOL