O'Brien, J. A. (1937). The trek of the intellectuals to Rome: The dramatic surrender to truth. The Paulist Press.
Lua i Stíl Chicago (17ú heag.)O'Brien, John A. The Trek of the Intellectuals to Rome: The Dramatic Surrender to Truth. New York: The Paulist Press, 1937.
Lua MLA (8ú heag.)O'Brien, John A. The Trek of the Intellectuals to Rome: The Dramatic Surrender to Truth. The Paulist Press, 1937.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.