APA (7th ed.) Citation

Pius XII, P. (1951). 1950 Christmas message .. National Catholic Welfare Conference.

Chicago Style (17th ed.) Citation

Pius XII, Pope. 1950 Christmas Message .. Washington: National Catholic Welfare Conference, 1951.

MLA (8th ed.) Citation

Pius XII, Pope. 1950 Christmas Message .. National Catholic Welfare Conference, 1951.

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