APA-referens (7:e uppl.)

Paul VI, P., & Cicognani, A. G. (1965). The church and urbanization: Letter to French Social Weeks, June 21, 1965. National Catholic Welfare Conference.

Chicago-referens (17:e uppl.)

Paul VI, Pope, och Amleto Giovanni Cicognani. The Church and Urbanization: Letter to French Social Weeks, June 21, 1965. Washington, D.C.: National Catholic Welfare Conference, 1965.

MLA-referens (8:e uppl.)

Paul VI, Pope, och Amleto Giovanni Cicognani. The Church and Urbanization: Letter to French Social Weeks, June 21, 1965. National Catholic Welfare Conference, 1965.