United Nations. Secretary-General, 1953-1961 (Hammarskjold), & United Nations. Economic and Social Council. (1961). International economic assistance to the less developed countries: Report to the Economic and Social Council. Dept. of Economic and Social Affairs, United Nations.
Trích dẫn kiểu Chicago (xuất bản lần thứ 7)United Nations. Secretary-General, 1953-1961 (Hammarskjold), và United Nations. Economic and Social Council. International Economic Assistance to the Less Developed Countries: Report to the Economic and Social Council. New York: Dept. of Economic and Social Affairs, United Nations, 1961.
Trích dẫn kiểu MLA (xuất bản lần thứ 9)United Nations. Secretary-General, 1953-1961 (Hammarskjold), và United Nations. Economic and Social Council. International Economic Assistance to the Less Developed Countries: Report to the Economic and Social Council. Dept. of Economic and Social Affairs, United Nations, 1961.