Korner Stephan <br/><br/>
Categorial frameworks. 

 - Oxford  Basil Blackwell           1970 
 - 85p.  cm. 
<br/><br/><label>Standard No.: </label>138785 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R199, L0