Não informado. (1886). Annals of the Cape Observatory. Royal Observatory.
Chicagoスタイル(17版)引用形式Não informado. Annals of the Cape Observatory. London: Royal Observatory, 1886.
MLA(8版)引用形式Não informado. Annals of the Cape Observatory. Royal Observatory, 1886.
警告: この引用は必ずしも正確ではありません.