Pius XII, P. (1958). Divine order and harmony in the world: 1957 Christmas message of Pope Pius XII, December 22, 1957. National Catholic Welfare Conference.
Chicago Style (17th ed.) CitationPius XII, Pope. Divine Order and Harmony in the World: 1957 Christmas Message of Pope Pius XII, December 22, 1957. Washington: National Catholic Welfare Conference, 1958.
MLA (8th ed.) CitationPius XII, Pope. Divine Order and Harmony in the World: 1957 Christmas Message of Pope Pius XII, December 22, 1957. National Catholic Welfare Conference, 1958.
Warning: These citations may not always be 100% accurate.