APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.