Eddington, A. S. (1933). The expandig universe. The Cambridge University.
Lua i Stíl Chicago (17ú heag.)Eddington, Arthur S. The Expandig Universe. Cambridge: The Cambridge University, 1933.
Lua MLA (9ú heag.)Eddington, Arthur S. The Expandig Universe. The Cambridge University, 1933.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.