Trattner, W. I. (1984). From poor law to welfare state: A history of social welfare in America. The Free Press A Division of Macmillan Inc.
Lua i Stíl Chicago (17ú heag.)Trattner, Walter I. From Poor Law to Welfare State: A History of Social Welfare in America. The Free Press A Division of Macmillan Inc, 1984.
Lua MLA (8ú heag.)Trattner, Walter I. From Poor Law to Welfare State: A History of Social Welfare in America. The Free Press A Division of Macmillan Inc, 1984.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.