APA (7th ed.) Citation

Beard, C. A. (1936). The devil theory of war: An inquiry into the nature of history and the possibility of keeping out of war. Vanguard Press.

Chicago Style (17th ed.) Citation

Beard, Charles A. The Devil Theory of War: An Inquiry into the Nature of History and the Possibility of Keeping Out of War. New York: Vanguard Press, 1936.

MLA (9th ed.) Citation

Beard, Charles A. The Devil Theory of War: An Inquiry into the Nature of History and the Possibility of Keeping Out of War. Vanguard Press, 1936.