Não informado. (1886). Annals of the Cape Observatory. Royal Observatory.
Style de citation Chicago (17e éd.)Não informado. Annals of the Cape Observatory. London: Royal Observatory, 1886.
Style de citation MLA (8e éd.)Não informado. Annals of the Cape Observatory. Royal Observatory, 1886.
Attention : ces citations peuvent ne pas être correctes à 100%.