Não informado. (2009). Memoirs of the Royal Astronomical Society. Blackwell Scientific Publications.
Lua i Stíl Chicago (17ú heag.)Não informado. Memoirs of the Royal Astronomical Society. Oxford, Inglaterra: Blackwell Scientific Publications, 2009.
Lua MLA (8ú heag.)Não informado. Memoirs of the Royal Astronomical Society. Blackwell Scientific Publications, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.