Catholic Church. Pope (1939-1958 : Pius XII) & Pius XII, P. (1947). St. Benedict: Encyclical letter of Pope Pius XII on St. Benedict of Nursia. National Catholic Welfare Conference.
Παραπομπή σε μορφή Chicago (17η εκδ.)Catholic Church. Pope (1939-1958 : Pius XII) και Pope Pius XII. St. Benedict: Encyclical Letter of Pope Pius XII on St. Benedict of Nursia. Washington: National Catholic Welfare Conference, 1947.
Παραπομπή σε μορφή MLA (8th εκδ.)Catholic Church. Pope (1939-1958 : Pius XII) και Pope Pius XII. St. Benedict: Encyclical Letter of Pope Pius XII on St. Benedict of Nursia. National Catholic Welfare Conference, 1947.
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