Cita APA

Prager, C. (2004). World commodity survey 2003-2004: Markets, trends and the world economic environment. New York: United Nations.

Citación estilo Chicago

Prager, Charles. World Commodity Survey 2003-2004: Markets, Trends and the World Economic Environment. New York: United Nations, 2004.

Cita MLA

Prager, Charles. World Commodity Survey 2003-2004: Markets, Trends and the World Economic Environment. New York: United Nations, 2004.