Jackson, Peter. <br/><br/>
Logic-based knowledge represantation / 
by Peter Jackson, Han Reichgelt, Frank van Harmelen. 
 - Cambridge, Mass. :  The MIT Press,  1989. 
 - ix, 255 p. 
 - MIT Press Series in Logic Programming. .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>026210038X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Expert systems (Computer science).<br/>Logic programming.