TY  - BOOK
AU  - Sawicki,Ed
TI  - Principles of relational database systems
SN  - 0137386184
U1  - QA/76.9.D3 
PY  - 1991///
CY  - Englewood Cliffs, N. J.
PB  - Prentice-Hall
KW  - Database management.
KW  - Relational databases
N1  - Notes Registration No. 24011
ER  -