Ledóchowski, M. H. (1892). Santa Sede e la questione scolastica negli Stati Uniti [3rd ed.]. Saint Louis University Libraries Digitization Center.
Lua i Stíl Chicago (17ú heag.)Ledóchowski, Mieczysław Halka. Santa Sede E La Questione Scolastica Negli Stati Uniti [3rd Ed.]. Saint Louis University Libraries Digitization Center, 1892.
Lua MLA (8ú heag.)Ledóchowski, Mieczysław Halka. Santa Sede E La Questione Scolastica Negli Stati Uniti [3rd Ed.]. Saint Louis University Libraries Digitization Center, 1892.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.