Não informado. (1901). Lick Observatory Bulletin. University of California, Lick Observatory.
Lua i Stíl Chicago (17ú heag.)Não informado. Lick Observatory Bulletin. Berkeley, Calif: University of California, Lick Observatory, 1901.
Lua MLA (8ú heag.)Não informado. Lick Observatory Bulletin. University of California, Lick Observatory, 1901.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.