APA (7th ed.) Citation

Frere, S. (1987). Britannia: A history of Roman Britain (3rd ed., extensively rev.). Routledge & Kegan Paul.

Chicago Style (17th ed.) Citation

Frere, Sheppard. Britannia: A History of Roman Britain. 3rd ed., extensively rev. London ; New York: Routledge & Kegan Paul, 1987.

MLA (9th ed.) Citation

Frere, Sheppard. Britannia: A History of Roman Britain. 3rd ed., extensively rev. Routledge & Kegan Paul, 1987.