TY  - BOOK
AU  - O'Hearn, Steve 
TI  - OCA oracle database  SQL certified expert exam guide (exam 1ZO-047)
SN  - 9780070701410
U1  - 005.7565 
PY  - 2010///
CY  - New Delhi
PB  - Tatal Mcgraw Hill Education 
N1  - Includes index
ER  -