APA
Pius XII, Catholic Church. Pope (1939-1958 : Pius XII), . (1943). Mystici corporis : encyclical letter of Pope Pius XII on the mystical body of Christ. St. Paul: St. Paul Editions.
Chicago
Pius XII, Catholic Church. Pope (1939-1958 : Pius XII), . 1943. Mystici corporis : encyclical letter of Pope Pius XII on the mystical body of Christ. St. Paul: St. Paul Editions.
Harvard
Pius XII, Catholic Church. Pope (1939-1958 : Pius XII), . (1943). Mystici corporis : encyclical letter of Pope Pius XII on the mystical body of Christ. St. Paul: St. Paul Editions.
MLA
Pius XII, Catholic Church. Pope (1939-1958 : Pius XII), . Mystici corporis : encyclical letter of Pope Pius XII on the mystical body of Christ. St. Paul: St. Paul Editions. 1943.
