William Bentley Ball. The Catholic University of America, The American Catholic History Research Center and University Archives.
Lua i Stíl Chicago (17ú heag.)William Bentley Ball. The Catholic University of America, The American Catholic History Research Center and University Archives.
Lua MLA (8ú heag.)William Bentley Ball. The Catholic University of America, The American Catholic History Research Center and University Archives.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.