APA (7th ed.) Citation

O'Hearn, S. (2009). OCA Oracle database: SQL certified expert exam guide : (exam 1Z0-047) (1st edition.). McGraw-Hill Education.

Chicago Style (17th ed.) Citation

O'Hearn, Steve. OCA Oracle Database: SQL Certified Expert Exam Guide : (exam 1Z0-047). 1st edition. New York, New York State: McGraw-Hill Education, 2009.

MLA (9th ed.) Citation

O'Hearn, Steve. OCA Oracle Database: SQL Certified Expert Exam Guide : (exam 1Z0-047). 1st edition. McGraw-Hill Education, 2009.