Não informado. (1928). Monthly list books catalogued in the Library of the United nations. United Nations Library.
Style de citation Chicago (17e éd.)Não informado. Monthly List Books Catalogued in the Library of the United Nations. Geneve, Suíça: United Nations Library, 1928.
Style de citation MLA (8e éd.)Não informado. Monthly List Books Catalogued in the Library of the United Nations. United Nations Library, 1928.
Attention : ces citations peuvent ne pas être correctes à 100%.