Butler, C. (1930). The Vatican Council. Longmans, Green, and Co..
Lua i Stíl Chicago (17ú heag.)Butler, Cuthbert. The Vatican Council. London ; New York ; Toronto: Longmans, Green, and Co., 1930.
Lua MLA (8ú heag.)Butler, Cuthbert. The Vatican Council. Longmans, Green, and Co., 1930.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.