APA (7th ed.) Citation

Campbell, B. (1984). The emperor and the Roman Army: 31 BC - AD 235. Clarendon Pr.

Chicago Style (17th ed.) Citation

Campbell, Brian. The Emperor and the Roman Army: 31 BC - AD 235. Oxford: Clarendon Pr, 1984.

MLA (9th ed.) Citation

Campbell, Brian. The Emperor and the Roman Army: 31 BC - AD 235. Clarendon Pr, 1984.

Warning: These citations may not always be 100% accurate.