Cita APA (7th ed.)

Smick, D. M. (2009). The world is curved: Hidden dangers to the global economy. Portfolio.

Cita Chicago (17th ed.)

Smick, David M. The World Is Curved: Hidden Dangers to the Global Economy. New York: Portfolio, 2009.

Cita MLA (9th ed.)

Smick, David M. The World Is Curved: Hidden Dangers to the Global Economy. Portfolio, 2009.