APA Citation

(1970). Technical and economic problems of high-speed ploughing/prepared. New York : United Nations, 1970.

Chicago Style Citation

Technical and Economic Problems of High-speed Ploughing/prepared. New York : United Nations, 1970, 1970.

MLA Citation

Technical and Economic Problems of High-speed Ploughing/prepared. New York : United Nations, 1970, 1970.

Warning: These citations may not always be 100% accurate.