Hahn, F. (1973). The worship of the early church. Fortress Press.
Lua i Stíl Chicago (17ú heag.)Hahn, Ferdinand. The Worship of the Early Church. Philadelphia: Fortress Press, 1973.
Lua MLA (8ú heag.)Hahn, Ferdinand. The Worship of the Early Church. Fortress Press, 1973.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.