TY  - GEN
AU  - Jeefrey . D Ullman Jennifer Widom
TI  - A First Course in Database Systems
T2  - 22694
SN  - 8131715353
U1  - 005.19 
PY  - 2007///
CY  - New Delhi
PB  - Pearson 
KW  - Database System
ER  -