Não informado. (1903). Bulletin of the Lowell Observatory. Lowell Observatory.
Chicagoスタイル(17版)引用形式Não informado. Bulletin of the Lowell Observatory. Flagstaff, Ariz: Lowell Observatory, 1903.
MLA(8版)引用形式Não informado. Bulletin of the Lowell Observatory. Lowell Observatory, 1903.
警告: この引用は必ずしも正確ではありません.