APA (7th ed.) Citation

Wells, C. M. (1995). The Roman Empire (2nd ed.). Harvard University Press.

Chicago Style (17th ed.) Citation

Wells, C. M. The Roman Empire. 2nd ed. Cambridge, Mass.: Harvard University Press, 1995.

MLA (9th ed.) Citation

Wells, C. M. The Roman Empire. 2nd ed. Harvard University Press, 1995.