United Nations Industrial Development Organization. (1975). Information sources on the glass industry. United Nations.
Chicago-Zitierstil (17. Ausg.)United Nations Industrial Development Organization. Information Sources on the Glass Industry. New York: United Nations, 1975.
MLA-Zitierstil (9. Ausg.)United Nations Industrial Development Organization. Information Sources on the Glass Industry. United Nations, 1975.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.