Autor
Communist Party of the United States of America
4
Industrial Workers of the World
3
Knights of Labor
2
Lum, Dyer D. (Dyer Daniel), 1840-1893
2
National Caucus of Labor Committees (U.S.)
2
National Minority Movement (Great Britain)
2
Parsons, Albert Richard, 1848-1887
2
Red International of Labor Unions. British Section
2
Workers (Communist) Party of America
2
Workers League (U.S.)
2
California State Federation of Labor
1
Catholic Council on Working Life (Chicago, Ill.)
1
Catholic Labor Alliance (Chicago, Ill.)
1
Clyde Workers' Committee
1
Federasi Serikat Pekerja Seluruh Indonesia
1
Marciniak, Ed
1
New York Students for a Democratic Society. Labor Committee
1
North Carolina Industrial Association
1
Packinghouse Workers Organizing Committee
1
Red International of Labor Unions
1
Red International of Labor Unions. British Bureau
1
San Francisco Labor Council
1
Scottish Workers' Committees
1
Shop Stewards' and Workers' Committee Movement (Great Britain)
1
Sovet rabochikh g. Leningrada (Sankt-Peterburga)
1
Spartacist League (Great Britain)
1
United Packinghouse Workers of America
1
United Packinghouse, Food, and Allied Workers
1
United States Labor Party
1
Workers League (U.S.). Central Committee
1
Workers Party of America. Central Executive Committee
1
Workers' International Industrial Union
1
Zanesville Central Trades and Labor Council
1