APA ציטוט

United Nations Industrial Development Organization. (1977). Infomation souuces on the iron and steel industry. New York: United Nations.

Trích dẫn kiểu Chicago

United Nations Industrial Development Organization. Infomation Souuces On the Iron and Steel Industry. New York: United Nations, 1977.

ציטוט MLA

United Nations Industrial Development Organization. Infomation Souuces On the Iron and Steel Industry. New York: United Nations, 1977.