TY  - BOOK
AU  - Ullman, Jeffery D.
TI  - Principles of Database and Knowledge-Based Systems; Vol 1: Classical Database Systems
SN  - 0716781581
U1  - 005.74 ULL 
PY  - 1999///
CY  - Maryland
PB  - Computer Science Press
KW  - Data base management
KW  - Computer Science
N1  - Vol 1: Classical Database Systems
ER  -