Wolfram, Sybil,  1931- <br/><br/>
Philosophical logic :  an introduction / 
Sybil Wolfram. 
 - London ;  New York :  Routledge,  1989. 
 - xiv, 290 p. ;  22 cm. 
 - 160 .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 263-269. 
<br/><br/><label>ISBN: </label>0415023181 (pbk.) 0415023173 (hard) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Logic.
<br/><br/><label>Dewey Class. No.: </label>160