TY  - BOOK
AU  - Ullman,Jeffrey D.
AU  - Widom,Jennifer  .
TI  - A first course in database systems / 
U1  - 005.74 
PY  - 2007///
CY  - England : 
PB  - Pearson Education , 
KW  - DATABASE SYSTEM
N1  - Includs bibliographical references and index
ER  -