Columbia subject headings:
Harvard subject headings:
AFL-CIO
American Federation of Labor--Archives.
Documents on microfilm--Catalogs.
Gompers, Samuel, 1850-1924--Archives.
Labor--Sources.
State Historical Society of Wisconsin.
Working class--Sources.
Princeton subject headings:
AFL-CIO.
American Federation of Labor--Archives.
Catalogs.
Documents on microfilm--Catalogs.
Gompers, Samuel, 1850-1924--Archives.
State Historical Society of Wisconsin.