APA (7th ed.) Citation

O'Sullivan, A., Sheffrin, S. M., & Perez, S. J. Economics: Principles, applications and tools (7th ed.).

Chicago Style (17th ed.) Citation

O'Sullivan, Arthur, Steven M. Sheffrin, and Stephen J. Perez. Economics: Principles, Applications and Tools. 7th ed.

MLA (8th ed.) Citation

O'Sullivan, Arthur, et al. Economics: Principles, Applications and Tools. 7th ed.