https://www.vatican.va/content/leo-xiii/en/encyclicals/documents/hf_l-xiii_enc_04081879_aeterni-patris.html?ref=discern.earth
Aeterni Patris (August 4, 1879)
Encyclical Aeterni Patris of Leo XIII, 4 August 1879
aeterni patrisaugust 41879
https://www.catholicculture.org/culture/library/view.cfm?id=4861
Library : Aeterni Patris (On The Restoration Of Christian Philosophy) | Catholic Culture
Aeterni Patris (On The Restoration Of Christian Philosophy) Encyclical of Pope Leo XIII Aeterni Patris (On The Restoration Of Christian Philosophy) promulgated...
aeterni patrison thechristian philosophylibrary
https://www.vatican.va/content/leo-xiii/it/encyclicals/documents/hf_l-xiii_enc_04081879_aeterni-patris.html
Aeterni Patris (4 agosto 1879)
Lettera enciclica di Papa Leone XIII Aeterni Patris , 4 agosto 1879
aeterni patris4 agosto1879