United Nations Industrial Development Organization. (1977). Information sources on the foundry industry (Rev. ed.). United Nations.
Chicago-referens (17:e uppl.)United Nations Industrial Development Organization. Information Sources on the Foundry Industry. Rev. ed. New York: United Nations, 1977.
MLA-referens (9:e uppl.)United Nations Industrial Development Organization. Information Sources on the Foundry Industry. Rev. ed. United Nations, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.