Não informado. (1928). Monthly list books catalogued in the Library of the United nations. United Nations Library.
Čikaški stil citiranja (17. izdanje)Não informado. Monthly List Books Catalogued in the Library of the United Nations. Geneve, Suíça: United Nations Library, 1928.
MLA način citiranja (8. izdanje)Não informado. Monthly List Books Catalogued in the Library of the United Nations. United Nations Library, 1928.
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