APA (7th ed.) Citation

O'Hearn, S. (2010). OCA Oracle database SQL certified expert exam guide: (exam IZ0-047) ; [complete exam preparation]. McGraw-Hill.

Chicago Style (17th ed.) Citation

O'Hearn, Steve. OCA Oracle Database SQL Certified Expert Exam Guide: (exam IZ0-047) ; [complete Exam Preparation]. New York [u.a.]: McGraw-Hill, 2010.

MLA (9th ed.) Citation

O'Hearn, Steve. OCA Oracle Database SQL Certified Expert Exam Guide: (exam IZ0-047) ; [complete Exam Preparation]. McGraw-Hill, 2010.