TY  - BOOK
AU  - Date,C.J., x
AU  - x
TI  - An introduction to database systems: x
SN  - 0201144743 
U1  - 001.64/D323i 
PY  - 1983///
CY  - Reading, Masachusetts Wokingham, England
PB  - Addiso-Wesley Pub.
KW  - Data base management
ER  -