Date,C.J <br/><br/>
An introduction to database systems. 3rd Ed. Vol.1/ 
C.J Date 
 - 3rd 
 - New Delhi:  Narosa  c1981 
 - 580p. 
<br/><br/><label>ISBN: </label>81 85015 58 9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Relational models, Database design
<br/><br/><label>Dewey Class. No.: </label>004.65  / DAT