Third United Nations Conference on the Standardization of Geographical Names, Athens, 17 August-7 September 1977.

MLA

United Nations. Third United Nations Conference on the Standardization of Geographical Names, Athens, 17 August-7 September 1977. New York : United Nations, 1979-1981.

APA

United Nations. (1979). Third United Nations Conference on the Standardization of Geographical Names, Athens, 17 August-7 September 1977. New York : United Nations.

Chicago

United Nations. Third United Nations Conference on the Standardization of Geographical Names, Athens, 17 August-7 September 1977. New York : United Nations, 1979-1981.