Ullman, Jeffrey D. <br/><br/>
Principles of database systems  [Books]. 
Jeffrey D. Ullman 
 - 2nd Ed. 
 - London  Pitman  .1982 
 - 484p.Includes index 
<br/><br/><label>ISBN: </label>0914894366  0.00 
<br/><br/><label>Subjects--Personal Names: </label><br/>Database management.
<br/><br/><label>Dewey Class. No.: </label>QA/76.9.D3  / ULL