Cita APA

O'Sullivan, A., & Sheffrin, S. M. (1998). Economics: Principles and tools. Prentice Hall.

Citación estilo Chicago

O'Sullivan, Arthur, and Steven M. Sheffrin. Economics: Principles and Tools. Upper Saddle River, N.J: Prentice Hall, 1998.

Cita MLA

O'Sullivan, Arthur, and Steven M. Sheffrin. Economics: Principles and Tools. Prentice Hall, 1998.