APA (7th ed.) Citation

Webster, G. (1979). The Roman imperial army of the first and second centuries A. D (2. ed.). Black.

Chicago Style (17th ed.) Citation

Webster, Graham. The Roman Imperial Army of the First and Second Centuries A. D. 2. ed. London: Black, 1979.

MLA (9th ed.) Citation

Webster, Graham. The Roman Imperial Army of the First and Second Centuries A. D. 2. ed. Black, 1979.