Adam, K. (1954). The spirit of catholicism. Image Books.
Lua i Stíl Chicago (17ú heag.)Adam, Karl. The Spirit of Catholicism. Image Books, 1954.
Lua MLA (9ú heag.)Adam, Karl. The Spirit of Catholicism. Image Books, 1954.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.