APA (7th ed.) Citation

Sullivan, R. E. (1960). Heirs of the Roman Empire. Cornell University Press.

Chicago Style (17th ed.) Citation

Sullivan, Richard Eugene. Heirs of the Roman Empire. Ithaca, N. Y: Cornell University Press, 1960.

MLA (9th ed.) Citation

Sullivan, Richard Eugene. Heirs of the Roman Empire. Cornell University Press, 1960.