APA (7th ed.) Citation

Mencken, H. L. (1930). Treatise on the gods. A. A. Knopf.

Chicago Style (17th ed.) Citation

Mencken, H. L. Treatise on the Gods. New York, London: A. A. Knopf, 1930.

MLA (9th ed.) Citation

Mencken, H. L. Treatise on the Gods. A. A. Knopf, 1930.