APA (7th ed.) Citation

Williams, S., Friell, G., & Friell, J. G. P. (1994). Theodosius: The empire at bay. Batsford.

Chicago Style (17th ed.) Citation

Williams, Stephen, Gerard Friell, and John Gerard Paul Friell. Theodosius: The Empire at Bay. London: Batsford, 1994.

MLA (8th ed.) Citation

Williams, Stephen, et al. Theodosius: The Empire at Bay. Batsford, 1994.