TY  - BOOK
AU  - Elmasri, Ramez.
AU  - Navathe, Shamkant B.
TI  - Database systems: models languages design and application programming 
SN  - 9788131792476
U1  - 005.74  6
PY  - 2014///
CY  - New Delhi
PB  - Pearson Education
KW  - Conceptual data modeling using entities and relationships
KW  - Introduction to query processing and query optimization techniques
ER  -