APA (7th ed.) Citation

Webster, G. (1956). The Roman army: An illustrated study. Grosvenor Museum.

Chicago Style (17th ed.) Citation

Webster, Graham. The Roman Army: An Illustrated Study. Chester, Eng.: Grosvenor Museum, 1956.

MLA (9th ed.) Citation

Webster, Graham. The Roman Army: An Illustrated Study. Grosvenor Museum, 1956.