Não informado. (1931). Journal of calendar reform. International World Calendar Association.
Style de citation Chicago (17e éd.)Não informado. Journal of Calendar Reform. New York: International World Calendar Association, 1931.
Style de citation MLA (8e éd.)Não informado. Journal of Calendar Reform. International World Calendar Association, 1931.
Attention : ces citations peuvent ne pas être correctes à 100%.