Não informado. (1925). Leaflet. Astronomical Society of the Pacific.
Style de citation Chicago (17e éd.)Não informado. Leaflet. San Francisco, Calif: Astronomical Society of the Pacific, 1925.
Style de citation MLA (8e éd.)Não informado. Leaflet. Astronomical Society of the Pacific, 1925.
Attention : ces citations peuvent ne pas être correctes à 100%.