Poli Roberto ed <br/><br/>
Formal ontology 

 - Dordrecht  Kluwer Pub        1996 
 - viii,293p.  cm. 
 - Nijhoff international philosophy series; 53 .
<br/><br/><label>Standard No.: </label>68,887 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>R3, N6