United Nations. Economic Commission for Europe, United Nations. Economic Commission for Europe, & United Nations. Economic Commission for Europe. (1973). Annual bulletin of steel statistics for Europe =: Bulletin annuel de statistiques de l'acier pour l'Europe = Ezhegodnyĭ bi͡ulletinʹ evropeĭskoĭ statistiki chernoĭ metallurgii. United Nations.
Chicago Style (17th ed.) CitationUnited Nations. Economic Commission for Europe, United Nations. Economic Commission for Europe, and United Nations. Economic Commission for Europe. Annual Bulletin of Steel Statistics for Europe =: Bulletin Annuel De Statistiques De L'acier Pour L'Europe = Ezhegodnyĭ Bi͡ulletinʹ Evropeĭskoĭ Statistiki Chernoĭ Metallurgii. New York: United Nations, 1973.
MLA (8th ed.) CitationUnited Nations. Economic Commission for Europe, et al. Annual Bulletin of Steel Statistics for Europe =: Bulletin Annuel De Statistiques De L'acier Pour L'Europe = Ezhegodnyĭ Bi͡ulletinʹ Evropeĭskoĭ Statistiki Chernoĭ Metallurgii. United Nations, 1973.