Date, C. J. <br/><br/>
An Introduction to database systems 

 - 6th ed 
 - Addison-wesley publishing company, Reading  1995 
 - xxiii;839 
<br/><br/><label>ISBN: </label>0-201-54329-X 
<br/><br/><label>Dewey Class. No.: </label>001.64 Dat