Não informado. (1898). Bulletin of the Astronomical Observatory of Harvard University. Astronomical Observatory of Harvard University.
Style de citation Chicago (17e éd.)Não informado. Bulletin of the Astronomical Observatory of Harvard University. Cambridge, Mass: Astronomical Observatory of Harvard University, 1898.
Style de citation MLA (8e éd.)Não informado. Bulletin of the Astronomical Observatory of Harvard University. Astronomical Observatory of Harvard University, 1898.
Attention : ces citations peuvent ne pas être correctes à 100%.