Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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