Abeloe, W. N. (1976). To the top of the mountain: The life of Father Umberto Olivieri, "Padre of the Otomis". Exposition Press.
Lua i Stíl Chicago (17ú heag.)Abeloe, William N. To the Top of the Mountain: The Life of Father Umberto Olivieri, "Padre of the Otomis". Hicksville, N.Y.: Exposition Press, 1976.
Lua MLA (8ú heag.)Abeloe, William N. To the Top of the Mountain: The Life of Father Umberto Olivieri, "Padre of the Otomis". Exposition Press, 1976.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.