Harney, J. B. (1948). The popes: Infallible teachers. The Paulist Press.
Lua i Stíl Chicago (17ú heag.)Harney, John B. The Popes: Infallible Teachers. New York: The Paulist Press, 1948.
Lua MLA (8ú heag.)Harney, John B. The Popes: Infallible Teachers. The Paulist Press, 1948.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.