Ullman, Jeffrey D.    <br/><br/>
A first course in database systems /  
Jeffrey D. Ullman and Jennifer Widom    
 - Upper Saddle River, New Jersey :  Prentice Hall,   1997    
 - xiii, 470 p. :  ill.;   24 cm.    
<br/><br/>Includes index    
<br/><br/><label>ISBN: </label>0138876479    
<br/><br/><label>Subjects--Topical Terms: </label><br/>Database management