TY  - BOOK
AU  - Gill,, P.S.
TI  - Database management systems / 
U1  - 005.74 
PY  - 2008///
CY  - New Delhi
PB  - I. K. International
KW  - Computer science
KW  - Databases
KW  - DBMS
KW  - Relational algebra
ER  -