APA (7th ed.) Citation

Hubbard, R. G., & O'Brien, A. P. (2006). Economics. Prentice Hall.

Chicago Style (17th ed.) Citation

Hubbard, R. Gleen, and Anthony Patrick O'Brien. Economics. Upper Saddle River, NJ: Prentice Hall, 2006.

MLA (8th ed.) Citation

Hubbard, R. Gleen, and Anthony Patrick O'Brien. Economics. Prentice Hall, 2006.