APA (7th ed.) Citation

Pius, P. C. C. P. (1943). Mystici Corporis Christi, Encyclical Letter on the Mystical Body of Christ. New York.

Chicago Style (17th ed.) Citation

Pius, Pope; Catholic Church. Pope. Mystici Corporis Christi, Encyclical Letter on the Mystical Body of Christ. New York, 1943.

MLA (8th ed.) Citation

Pius, Pope; Catholic Church. Pope. Mystici Corporis Christi, Encyclical Letter on the Mystical Body of Christ. New York, 1943.

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