The Proofs for the Existence of God in the Light of Modern Science: Address of Pope Pius XII to the Pontifical Academy of Sciences; National Catholic Welfare Conference, 1951/1122, PGEN 132/5906. General Collection, GEN. University of Notre Dame Archives. https://archivesspace.library.nd.edu/repositories/2/archival_objects/1097573 Accessed November 25, 2024.