Não informado. (1901). Lick Observatory Bulletin. University of California, Lick Observatory.
Style de citation Chicago (17e éd.)Não informado. Lick Observatory Bulletin. Berkeley, Calif: University of California, Lick Observatory, 1901.
Style de citation MLA (8e éd.)Não informado. Lick Observatory Bulletin. University of California, Lick Observatory, 1901.
Attention : ces citations peuvent ne pas être correctes à 100%.