APA (7th ed.) Citation

Pius XII, P. (1943). Pius XII and peace, 1939-1943: Excerpts from selected messages. National Catholic Welfare Conference.

Chicago Style (17th ed.) Citation

Pius XII, Pope. Pius XII and Peace, 1939-1943: Excerpts from Selected Messages. Washington, D.C.: National Catholic Welfare Conference, 1943.

MLA (8th ed.) Citation

Pius XII, Pope. Pius XII and Peace, 1939-1943: Excerpts from Selected Messages. National Catholic Welfare Conference, 1943.