APA (7th ed.) Citation

Ritchie, A. (1945). Civilization, science and religion. Penguin Books.

Chicago Style (17th ed.) Citation

Ritchie, A.D. Civilization, Science and Religion. Harmondsworth: Penguin Books, 1945.

MLA (8th ed.) Citation

Ritchie, A.D. Civilization, Science and Religion. Penguin Books, 1945.

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