Lewis, Clarence Irving <br/><br/>
Symbolic Logic 

 - 2th ed.  
 - New York  Dover Publications Inc  1932 
 - 560p 
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>0486601706     200 
<br/><br/><label>Dewey Class. No.: </label>N14  / L585