APA (7th ed.) Citation

Heering, G. J. (1930). The fall of Christianity: A study of Christianity, the state, and war.

Chicago Style (17th ed.) Citation

Heering, G. J. The Fall of Christianity: A Study of Christianity, the State, and War. London, 1930.

MLA (8th ed.) Citation

Heering, G. J. The Fall of Christianity: A Study of Christianity, the State, and War. 1930.

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