United Nations. Department of Economic Affairs & United Nations. Department of Economic Affairs. World economic survey, 1950/51. (1952). Recent changes in production. United Nations.
Lua i Stíl Chicago (17ú heag.)United Nations. Department of Economic Affairs agus 1950/51 United Nations. Department of Economic Affairs. World economic survey. Recent Changes in Production. New York: United Nations, 1952.
Lua MLA (9ú heag.)United Nations. Department of Economic Affairs agus 1950/51 United Nations. Department of Economic Affairs. World economic survey. Recent Changes in Production. United Nations, 1952.
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