APA (7th ed.) Citation

Casey, P. J. (2003). Carausius and Allectus: The British usurpers (2. ed.). Routledge.

Chicago Style (17th ed.) Citation

Casey, Patrick J. Carausius and Allectus: The British Usurpers. 2. ed. London: Routledge, 2003.

MLA (9th ed.) Citation

Casey, Patrick J. Carausius and Allectus: The British Usurpers. 2. ed. Routledge, 2003.