Cita APA (7a ed.)

Barnes, T. D. (1981). Constantine and Eusebius. London- England.

Cita Chicago Style (17a ed.)

Barnes, Timothy David. Constantine and Eusebius. Cambridge-Massachusetts: London- England, 1981.

Cita MLA (9a ed.)

Barnes, Timothy David. Constantine and Eusebius. London- England, 1981.