APA (7e ed.) Bronvermelding

John XXIII, P. (1959). The Holy Father speaks to teachers. National Catholic Welfare Conference.

Chicago (17e ed.) Bronvermelding

John XXIII, Pope. The Holy Father Speaks to Teachers. Washington, D.C.: National Catholic Welfare Conference, 1959.

MLA (8e ed.) Bronvermelding

John XXIII, Pope. The Holy Father Speaks to Teachers. National Catholic Welfare Conference, 1959.

Let op: Deze citaties zijn niet altijd 100% accuraat.