TY  - BOOK
AU  - Ramakrishna R ,
AU  - Gehrke J ,
TI  - Database Management Systems 3 rd ed 
SN  - 007123151x
U1  - 005.74 
PY  - 2003///
CY  - [s.l]
PB  - Mc Graw Hill  New York
ER  -