APA (7th ed.) Citation

O'Brien, A. P. (2009). Microeconomics (3rd ed.). Prentice Hall.

Chicago Style (17th ed.) Citation

O'Brien, Anthony Patrick. Microeconomics. 3rd ed. New York: Prentice Hall, 2009.

MLA (9th ed.) Citation

O'Brien, Anthony Patrick. Microeconomics. 3rd ed. Prentice Hall, 2009.