APA (7th ed.) Citation

United Nations. Economic Commission for Europe. (1990). Annual bulletin of electric energy statistics for Europe 1990 (1. Edisyon.). UN. , Economic Commission for Europe.

Chicago Style (17th ed.) Citation

United Nations. Economic Commission for Europe. Annual Bulletin of Electric Energy Statistics for Europe 1990. 1. Edisyon. New York: UN. , Economic Commission for Europe, 1990.

MLA (9th ed.) Citation

United Nations. Economic Commission for Europe. Annual Bulletin of Electric Energy Statistics for Europe 1990. 1. Edisyon. UN. , Economic Commission for Europe, 1990.