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.
Cytowanie według stylu Chicago (wyd. 17)Catholic Church. Pope (1939-1958 : Pius XII) i 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.
Cytowanie według stylu MLA (wyd. 8)Catholic Church. Pope (1939-1958 : Pius XII) i 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.