APA (7th ed.) Citation

Pius XII, P. (1940). Pius XII and peace, 1939-1940. National Catholic Welfare Conference.

Chicago Style (17th ed.) Citation

Pius XII, Pope. Pius XII and Peace, 1939-1940. Washington, D.C.: National Catholic Welfare Conference, 1940.

MLA (8th ed.) Citation

Pius XII, Pope. Pius XII and Peace, 1939-1940. National Catholic Welfare Conference, 1940.

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