APA (7th ed.) Citation

Allen, S. (2007). Lords of battle: The world of the Celtic warrior. Osprey.

Chicago Style (17th ed.) Citation

Allen, Stephen. Lords of Battle: The World of the Celtic Warrior. Oxford: Osprey, 2007.

MLA (9th ed.) Citation

Allen, Stephen. Lords of Battle: The World of the Celtic Warrior. Osprey, 2007.

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