Não informado. (1901). Lick Observatory Bulletin. University of California, Lick Observatory.
Chicagoスタイル(17版)引用形式Não informado. Lick Observatory Bulletin. Berkeley, Calif: University of California, Lick Observatory, 1901.
MLA(8版)引用形式Não informado. Lick Observatory Bulletin. University of California, Lick Observatory, 1901.
警告: この引用は必ずしも正確ではありません.