Date, C. J. <br/><br/>
An introduction to database systems  volume 2 
C. J. Date 
 - London  Addison-Wesley Publishing Company  1983 
 - xv, 383p.:  ill.;  25cm 
<br/><br/> Includes index 
<br/><br/><label>ISBN: </label>0201144743 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Data base management