O'Brien, J. A. (1940). How to find Christ's Church: Charts show the way. [Catholic Information Society].
Lua i Stíl Chicago (17ú heag.)O'Brien, John A. How to Find Christ's Church: Charts Show the Way. [New York]: [Catholic Information Society], 1940.
Lua MLA (8ú heag.)O'Brien, John A. How to Find Christ's Church: Charts Show the Way. [Catholic Information Society], 1940.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.