APA (7th ed.) Citation

UN. (1994). World comparisons of real gross domestic product and purchasing power. United Nations.

Chicago Style (17th ed.) Citation

UN. World Comparisons of Real Gross Domestic Product and Purchasing Power. New York: United Nations, 1994.

MLA (8th ed.) Citation

UN. World Comparisons of Real Gross Domestic Product and Purchasing Power. United Nations, 1994.

Warning: These citations may not always be 100% accurate.