Principles of semantics networks  explorations in the representation of knowledge 
contributors Alexander Borgida (et al.) ; edited by John F. Sowa 
 - San Mateo, CA  Morgan Kaufmann Pub.  1991 
 - 582 p. ; 26 cm. 
<br/><br/><label>ISBN: </label>1558600884 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Semantics--Mathematical models<br/>Artificial intelligence