APA (7th ed.) Citation

D'Amato, R., & Ruggeri, R. (2016). Roman Army units in the Western provinces: 1, 31 BC-AD 195 (1st published in Great Britain.). Osprey.

Chicago Style (17th ed.) Citation

D'Amato, Raffaele, and Raffaele Ruggeri. Roman Army Units in the Western Provinces: 1, 31 BC-AD 195. 1st published in Great Britain. Oxford: Osprey, 2016.

MLA (9th ed.) Citation

D'Amato, Raffaele, and Raffaele Ruggeri. Roman Army Units in the Western Provinces: 1, 31 BC-AD 195. 1st published in Great Britain. Osprey, 2016.