APA (7th ed.) Citation

Clement I, P., Ignatius, S., Polycarp, S., & Lake, K. (1919). The Apostolic fathers. G.P. Putnam's sons.

Chicago Style (17th ed.) Citation

Clement I, Pope, Saint Ignatius, Saint Polycarp, and Kirsopp Lake. The Apostolic Fathers. New York: G.P. Putnam's sons, 1919.

MLA (9th ed.) Citation

Clement I, Pope, et al. The Apostolic Fathers. G.P. Putnam's sons, 1919.