Ullman, Jeffrey D. <br/><br/>
Principles of database systems / 
Jeffrey D. Ullman 
 - 2nd ed. 
 - New Delhi :  Galgitia,  c1990. 
 - 484p. ;  ill., figs. ;  24 cm. 
<br/><br/><label>ISBN: </label>
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Database management.
<br/><br/><label>LC Class. No.: </label>QA76.9  / .D3U44 1990 
<br/><br/><label>Dewey Class. No.: </label>001.64  / U41p