Cita APA (7a ed.)

Koester, H. (1990). Ancient Christian Gospels: Their history and development. Trinity Press International.

Cita Chicago Style (17a ed.)

Koester, Helmut. Ancient Christian Gospels: Their History and Development. Harrisburg (Pensilvania): Trinity Press International, 1990.

Cita MLA (9a ed.)

Koester, Helmut. Ancient Christian Gospels: Their History and Development. Trinity Press International, 1990.