United Nations. Department of Economic Affairs & United Nations. Department of Economic Affairs. World economic survey, 1950/51. (1952). Recent changes in production. United Nations.
芝加哥风格引文United Nations. Department of Economic Affairs 与 1950/51 United Nations. Department of Economic Affairs. World economic survey. Recent Changes in Production. New York: United Nations, 1952.
MLA引文United Nations. Department of Economic Affairs 与 1950/51 United Nations. Department of Economic Affairs. World economic survey. Recent Changes in Production. United Nations, 1952.
警告：这些引文格式不一定是100％准确.