Lua APA (7ú heag.)

(1885). Universum. W. Hoffmann.

Lua i Stíl Chicago (17ú heag.)

Universum. Dresden: W. Hoffmann, 1885.

Lua MLA (8ú heag.)

Universum. W. Hoffmann, 1885.

Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.