United Nations. Technical Assistance Administration. (1951). Services of the United Nations Technical Assistance Administration and how to obtain them. [s.n.].
芝加哥风格引文United Nations. Technical Assistance Administration. Services of the United Nations Technical Assistance Administration and How to Obtain Them. New York: [s.n.], 1951.
MLA引文United Nations. Technical Assistance Administration. Services of the United Nations Technical Assistance Administration and How to Obtain Them. [s.n.], 1951.
警告：这些引文格式不一定是100％准确.