APA-referens (7:e uppl.)

Hahn, F. (1973). The worship of the early church. Fortress Press.

Chicago-referens (17:e uppl.)

Hahn, Ferdinand. The Worship of the Early Church. Philadelphia: Fortress Press, 1973.

MLA-referens (8:e uppl.)

Hahn, Ferdinand. The Worship of the Early Church. Fortress Press, 1973.