Ullman, Jeffrey, D. <br/><br/>
Principles of database systems 

 - 2nd Edition 
 - Maryland  Computer Science Press  1982 
 - vii,484p. 
<br/><br/><label>ISBN: </label> USD 33.95 
<br/><br/><label>Source: </label> USD 33.95 
<br/><br/><label>Dewey Class. No.: </label>001.64 ULL