Henkin Leon <br/><br/>
Logical systems containing only a finite number os symbols 

 - Montreal  University De Montreal         1967 
 - 52p.  cm. 
<br/><br/><label>Standard No.: </label>19665 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>B2:(R1), K7