Cullmann, O. (1953). Early Christian worship. H. Regnery.
Lua i Stíl Chicago (17ú heag.)Cullmann, Oscar. Early Christian Worship. Chicago: H. Regnery, 1953.
Lua MLA (8ú heag.)Cullmann, Oscar. Early Christian Worship. H. Regnery, 1953.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.