Working Party on Earthmoving Operations & United Nations. Economic Commission for Asia and the Far East. Bureau of Flood Control and Water Resources Development. (1961). Earthmoving by manual labour and machines: (report and discussion papers of the Working Party on Earthmoving Operations). United Nations.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)Working Party on Earthmoving Operations và United Nations. Economic Commission for Asia and the Far East. Bureau of Flood Control and Water Resources Development. Earthmoving by Manual Labour and Machines: (report and Discussion Papers of the Working Party on Earthmoving Operations). Bangkok: United Nations, 1961.
Trích dẫn kiểu MLA (xuất bản lần thứ 8)Working Party on Earthmoving Operations và United Nations. Economic Commission for Asia and the Far East. Bureau of Flood Control and Water Resources Development. Earthmoving by Manual Labour and Machines: (report and Discussion Papers of the Working Party on Earthmoving Operations). United Nations, 1961.