APA (7e ed.) Bronvermelding

Catholic Church. Pope (1939-1958 : Pius XII) & Pius XII, P. (1957). The Lourdes pilgrimage: Encyclical of His Holiness Pope Pius XII issued on the centenary of the apparitions of the Blessed Virgin at Lourdes, July 2, 1957. National Catholic Welfare Conference.

Chicago (17e ed.) Bronvermelding

Catholic Church. Pope (1939-1958 : Pius XII) en Pope Pius XII. The Lourdes Pilgrimage: Encyclical of His Holiness Pope Pius XII Issued on the Centenary of the Apparitions of the Blessed Virgin at Lourdes, July 2, 1957. Washington: National Catholic Welfare Conference, 1957.

MLA (8e ed.) Bronvermelding

Catholic Church. Pope (1939-1958 : Pius XII) en Pope Pius XII. The Lourdes Pilgrimage: Encyclical of His Holiness Pope Pius XII Issued on the Centenary of the Apparitions of the Blessed Virgin at Lourdes, July 2, 1957. National Catholic Welfare Conference, 1957.