APA Style
O'Hearn, S. (2008).
OCA Oracle Database: SQL Certified Expert Exam Guide (Exam 1Z0-047) .
New York:
Oracle Press.
MLA Style
O'Hearn, Steve.
"OCA Oracle Database: SQL Certified Expert Exam Guide (Exam 1Z0-047)".
New York:
Oracle Press,
2008.
Text.