Gaya APA

Robkinson, D, A, D, J, A. (2012). Why Nations Fail: The Origins Of Power, Prosperity, And Poverty . New York: Crown Business.

Gaya MLA

Robkinson, Daron, Acemoglu, Dan, James, A.. "Why Nations Fail: The Origins Of Power, Prosperity, And Poverty". New York: Crown Business, 2012. Text.