APA引文

United Nations Industrial Development Organization. (1979). World-wide study of the agricultural machinery industry. U.S.A: United Nations Industrial Development Organization.

Trích dẫn kiểu Chicago

United Nations Industrial Development Organization. World-wide Study of the Agricultural Machinery Industry. U.S.A: United Nations Industrial Development Organization, 1979.

MLA引文

United Nations Industrial Development Organization. World-wide Study of the Agricultural Machinery Industry. U.S.A: United Nations Industrial Development Organization, 1979.

警告：这些引文格式不一定是100％准确.