Subjects
- Labor Day.1
- Labor and laboring classes--England--History--18th century.1
- Labor and laboring classes--Illinois--Chicago--Pictorial works1
- Labor disputes2
- Labor disputes -- West Virginia -- 20th century -- History2
- Labor laws and legislation -- United States3
- Labor laws and legislation United States1
- Labor laws and legislation, International1
- Labor organization - Interracial Council.1
- Labor organization - Labor's Non-Partisan League.1
- Labor organization - Subversive Activities Control Board.2
- Labor organization - integration.2
- Labor organization.3
- Labor organization. SEE ALSO Coal mining - labor13
- Labor organizing, UMWA - Ohio.1