United Nations. Dept. of Public Information. (1949). Check list of United Nations Library. pt. 1- 1949-. United Nations Library.
Lua i Stíl Chicago (17ú heag.)United Nations. Dept. of Public Information. Check List of United Nations Library. Pt. 1- 1949-. Lake Success: United Nations Library, 1949.
Lua MLA (9ú heag.)United Nations. Dept. of Public Information. Check List of United Nations Library. Pt. 1- 1949-. United Nations Library, 1949.
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