United Nations Industrial Development Organization. (1976). Information sources on the machine tool industry. United Nations.
Lua i Stíl Chicago (17ú heag.)United Nations Industrial Development Organization. Information Sources on the Machine Tool Industry. New York: United Nations, 1976.
Lua MLA (9ú heag.)United Nations Industrial Development Organization. Information Sources on the Machine Tool Industry. United Nations, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.