Ullman, Jeffrey D. <br/><br/>
Principles of Database Systems /   Textual Documents 
NULL. 
 - 2nd ed /   . 
 - New Delhi :   Galgotia Publications Pvt. Ltd. ,   2000. 
 - 422 ;   28*20. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Index Terms: </label>Database Management System 
<br/><br/><label>Dewey Class. No.: </label>005.740 68  / ULL