Ullman, Jeffrey D. <br/><br/>
Principles of database sysytems 

 - 2nd ed. 
 - New Delhi  Galgotia Publications  1996 
 - 484p. 
<br/><br/><label>ISBN: </label> 160 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer database<br/>Database sysytems
<br/><br/><label>Dewey Class. No.: </label>005.74  / ULL