APA (7th ed.) Citation

Rostovtzeff, M. I., & Duff, J. D. (1930). A history of the ancient world. Clarendon Press.

Chicago Style (17th ed.) Citation

Rostovtzeff, Michael Ivanovitch, and J. D. Duff. A History of the Ancient World. Oxford: Clarendon Press, 1930.

MLA (9th ed.) Citation

Rostovtzeff, Michael Ivanovitch, and J. D. Duff. A History of the Ancient World. Clarendon Press, 1930.