Não informado. (1899). Proceedings of the Washington Academy of Sciences. Washington Academy of Sciences.
Style de citation Chicago (17e éd.)Não informado. Proceedings of the Washington Academy of Sciences. Washington: Washington Academy of Sciences, 1899.
Style de citation MLA (8e éd.)Não informado. Proceedings of the Washington Academy of Sciences. Washington Academy of Sciences, 1899.
Attention : ces citations peuvent ne pas être correctes à 100%.