Cita APA (7a ed.)

Potter, D. S. (2004). The Roman Empire at bay, AD 180-395. Routledge.

Cita Chicago Style (17a ed.)

Potter, D. S. The Roman Empire at Bay, AD 180-395. London ; New York: Routledge, 2004.

Cita MLA (9a ed.)

Potter, D. S. The Roman Empire at Bay, AD 180-395. Routledge, 2004.