Citazione APA

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

Stile di citazione Chicago

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

Citazione MLA

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

Attenzione: Queste citazioni potrebbero non essere precise al 100%.