TY  - BOOK
AU  - Ullman,Jeffrey D.
AU  - Widom,Jennifer
TI  - A first course in database systems / 
SN  - 0138876479   
PY  - 1997///
CY  - Upper Saddle River, New Jersey
PB  - Prentice Hall, 
KW  - Database management
N1  - Includes index
ER  -