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Lua i Stíl Chicago (17ú heag.)St. Procopius College (Lisle, Ill.). [Observatory of St. Procopius College]. [Lisle, Ill.]: St. Procopius College, 1960.
Lua MLA (8ú heag.)St. Procopius College (Lisle, Ill.). [Observatory of St. Procopius College]. St. Procopius College, 1960.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.