TY  - BOOK
AU  - Jeffrey D. Ullman 
TI  - Principles of Database Systems
SN  - 9788175155459
U1  - 005.74 ULL-P R 
PY  - 2000///
PB  - Galgotia Publications
KW  - Database Systems
KW  - Principles of Database Systems
KW  - Jeffrey D. Ullman
ER  -