APA (7th ed.) Citation

Webster, G. (1969). The Roman Imperial army of the first and second centuries A.D.

Chicago Style (17th ed.) Citation

Webster, Graham. The Roman Imperial Army of the First and Second Centuries A.D. 1969.

MLA (9th ed.) Citation

Webster, Graham. The Roman Imperial Army of the First and Second Centuries A.D. 1969.

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