TY  - GEN
AU  - Ramakrishnan, Gehrke
TI  - Database management systems, second edition, 2001.
SN  - 0072450525
U1  - 005.74 RAM 
PY  - 2001///
CY  - Boston
PB  - McGraw-Hill
KW  - Database Manangement Systems
N1  - Five
N2  - Relational Models
UR  - www.mhhe.com
ER  -