APA (7th ed.) Citation

Webster, G. (1999). The Roman invasion of Britain. Routledge.

Chicago Style (17th ed.) Citation

Webster, Graham. The Roman Invasion of Britain. London ; New York: Routledge, 1999.

MLA (8th ed.) Citation

Webster, Graham. The Roman Invasion of Britain. Routledge, 1999.

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