1. Industry concentration, legal form, and economic performance;Atack,2006
2. The commissioner of labor's strikes and lockouts: a cautionary note;Bailey;Labor History,1991
3. National and district systems of collective bargaining in the United States;Barnett;Quarterly Journal of Economics,1912
4. The Lean Years: A History of the American Worker, 1920–1933;Bernstein,1960
5. American Welfare Capitalism, 1880–1940;Brandes,1970