Date,C.J <br/><br/>
Introduction to Database Systems, Vol.1 

 - New Delhi  Narosa  1981 
 - p.1981 
<br/><br/><label>ISBN: </label>8185015589 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Database Systems<br/>Relational Calculus
<br/><br/><label>Dewey Class. No.: </label>621.3891535 D232I