Style de citation APA (7e éd.)

Pius XII, P. (1951). To all who are in prison: A message. National Catholic Welfare Conference.

Style de citation Chicago (17e éd.)

Pius XII, Pope. To All Who Are in Prison: A Message. Washington, D.C.: National Catholic Welfare Conference, 1951.

Style de citation MLA (8e éd.)

Pius XII, Pope. To All Who Are in Prison: A Message. National Catholic Welfare Conference, 1951.