Cita APA (7a ed.)

Fields, N., & Spedaliere, D. (2005). Rome's northern frontier, AD 70-235: Beyond Hadrian's wall. Osprey.

Cita Chicago Style (17a ed.)

Fields, Nic, y Donato Spedaliere. Rome's Northern Frontier, AD 70-235: Beyond Hadrian's Wall. Oxford: Osprey, 2005.

Cita MLA (9a ed.)

Fields, Nic, y Donato Spedaliere. Rome's Northern Frontier, AD 70-235: Beyond Hadrian's Wall. Osprey, 2005.