Ullman, Jeffrey D. <br/><br/>
Principles of database and knowledge-base systems / 
by Jeffrey D. Ullman. 
 - New York, N.Y. :  Computer Science Press,  1988. 
 - xi, 631 p. 
 - Principles of Computer Science Series. .
<br/><br/><label>ISBN: </label>0716781581 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer science.<br/>Database management.<br/>Expert systems (Computer science).