APA (7th ed.) Citation

Catholic Church. Pope (1939-1958 : Pius XII), Sheehan, S. G., & Pius XII, P. (1947). Encyclical letter of His Holiness Pius XII on the sacred liturgy: (Vatican Library translation). National Catholic Welfare Conference.

Chicago Style (17th ed.) Citation

Catholic Church. Pope (1939-1958 : Pius XII), Shawn G. Sheehan, and Pope Pius XII. Encyclical Letter of His Holiness Pius XII on the Sacred Liturgy: (Vatican Library Translation). Washington: National Catholic Welfare Conference, 1947.

MLA (8th ed.) Citation

Catholic Church. Pope (1939-1958 : Pius XII), et al. Encyclical Letter of His Holiness Pius XII on the Sacred Liturgy: (Vatican Library Translation). National Catholic Welfare Conference, 1947.