TY  - BOOK
AU  - Ullman, Jeffrey D
AU  - Widom, Jennifer
TI  - A first course in database systems
SN  - 138876479
CY  - New Jersey
KW  - Database languages
KW  - Database management system
KW  - Database modeling
KW  - DBMS
N1  - Includes bibliographical references and index
ER  -