APA (7th ed.) Citation

Jugie, M. (1950). Purgatory and the means to avoid it. Spiritual Book Associates.

Chicago Style (17th ed.) Citation

Jugie, Martin. Purgatory and the Means to Avoid It. New York: Spiritual Book Associates, 1950.

MLA (9th ed.) Citation

Jugie, Martin. Purgatory and the Means to Avoid It. Spiritual Book Associates, 1950.