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

 - 6th ed. 
 - Reading  Addison-Wesley  1997 
 - xxiii,839p.  23 cm. 
 - Addison-Wesley systems programming series .
<br/><br/><label>ISBN: </label>0201327546 
<br/><br/><label>Dewey Class. No.: </label>005.74  / DAT