Notes and Records of the Royal Society of London. Royal Society.
Lua i Stíl Chicago (17ú heag.)Notes and Records of the Royal Society of London. Royal Society.
Lua MLA (9ú heag.)Notes and Records of the Royal Society of London. Royal Society.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.