APA (7th ed.) Citation

Bardy, G. (1938). The church at the end of the first century. Sands.

Chicago Style (17th ed.) Citation

Bardy, Gustave. The Church at the End of the First Century. London: Sands, 1938.

MLA (9th ed.) Citation

Bardy, Gustave. The Church at the End of the First Century. Sands, 1938.