O'Brien, D. J. (1968). American Catholics and social reform: The New Deal years. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)O'Brien, David J. American Catholics and Social Reform: The New Deal Years. New York: Oxford University Press, 1968.
Lua MLA (8ú heag.)O'Brien, David J. American Catholics and Social Reform: The New Deal Years. Oxford University Press, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.