APA (7th ed.) Citation

Mattingly, H. (1967). Christianity in the Roman empire. Norton.

Chicago Style (17th ed.) Citation

Mattingly, Harold. Christianity in the Roman Empire. New York: Norton, 1967.

MLA (9th ed.) Citation

Mattingly, Harold. Christianity in the Roman Empire. Norton, 1967.

Warning: These citations may not always be 100% accurate.