Não informado. (1911). Contributions from the Princeton University Observatory. Princeton University Observatory.
Lua i Stíl Chicago (17ú heag.)Não informado. Contributions from the Princeton University Observatory. Princeton, NJ: Princeton University Observatory, 1911.
Lua MLA (8ú heag.)Não informado. Contributions from the Princeton University Observatory. Princeton University Observatory, 1911.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.