APA (7e ed.) Bronvermelding

Paul VI, P. (1964). Letter to Paolo Cardinal Marella on New York World's Fair. National Catholic Welfare Conference.

Chicago (17e ed.) Bronvermelding

Paul VI, Pope. Letter to Paolo Cardinal Marella on New York World's Fair. Washington, D.C.: National Catholic Welfare Conference, 1964.

MLA (8e ed.) Bronvermelding

Paul VI, Pope. Letter to Paolo Cardinal Marella on New York World's Fair. National Catholic Welfare Conference, 1964.