APA (7th ed.) Citation

United Nations. Statistical Division. (1993). Trends in international distribution of gross world product. United Nations.

Chicago Style (17th ed.) Citation

United Nations. Statistical Division. Trends in International Distribution of Gross World Product. New York: United Nations, 1993.

MLA (9th ed.) Citation

United Nations. Statistical Division. Trends in International Distribution of Gross World Product. United Nations, 1993.