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