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.
Παραπομπή σε μορφή Chicago (17η εκδ.)Working Party on Earthmoving Operations και 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.
Παραπομπή σε μορφή MLA (8th εκδ.)Working Party on Earthmoving Operations και 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.