Não informado. (1928). Monthly list books catalogued in the Library of the United nations. United Nations Library.
Chicago-viite (17. p.)Não informado. Monthly List Books Catalogued in the Library of the United Nations. Geneve, Suíça: United Nations Library, 1928.
MLA-viite (8. p.)Não informado. Monthly List Books Catalogued in the Library of the United Nations. United Nations Library, 1928.
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