Não informado. Publications of the Kapteyn Astronomical Laboratory at Groningen. University of Groningen.
Lua i Stíl Chicago (17ú heag.)Não informado. Publications of the Kapteyn Astronomical Laboratory at Groningen. Groningen, Holanda: University of Groningen.
Lua MLA (8ú heag.)Não informado. Publications of the Kapteyn Astronomical Laboratory at Groningen. University of Groningen.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.