TY  - BOOK
AU  - Date, C.J.
TI  - An introduction to database system
SN  - 0201385902
U1  - 005.74 
PY  - 2000///
CY  - California : New York
PB  - Addison-Wesley
KW  - Database management
KW  - File organization (Computer science)
N1  - Include Appendix and Index; 1.	An overview of database management
2.	Database system architecture
3.	An introduction to relational database
4.	An introduction to sql 
5.	Relational algebra
6.	Relational calculus

ER  -