TY  - BOOK
AU  - Date,C J.
AU  - Isaac,J R.
TI  - An introduction to database systems / 
SN  - 8185015589
U1  - 005.74 
PY  - 1981///(28th rep 1998)
CY  - New Delhi : 
PB  - Narosa Publishing House , 
KW  - DATABASE SYSTEM
N1  - NULL
ER  -