TY  - BOOK
AU  - Mittra,Sitansu S.
TI  - Principles of relational database systems
SN  - 0137386184
U1  - 005.756 
PY  - 1991///
CY  - Englewood Cliffs, N.J.
PB  - Prentice - Hall
KW  - Relational databases
ER  -