Ullman,Jeffrey D.  <br/><br/>
Principles of Data base system  
/ by Jeffrey D. Ullman  
 - 2nd ed. 
 - New Delhi:   Galgotia Publication ,   1999. 
 - viii,484p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer Science<br/>DBTG Proposal<br/>Hashed Files <br/>Hierarchical Model 
<br/><br/><label>Dewey Class. No.: </label>001.6442  / ULL/P