Ullman J.U. <br/><br/>
Principles of Data Base Systems 

 - New Delhi  Galgotia Publication  1992 
<br/><br/><label>ISBN: </label>0000022103 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Data <br/> Principles <br/> Systems<br/>Base <br/>Data Base Mana System
<br/><br/><label>Dewey Class. No.: </label>1.6