Autor
Singapore National Trades Union Congress
4
AFL-CIO
2
American Federation of Labor
2
American Federation of Musicians of the United States and Canada
2
Dairy Farmers' Union
2
Liga Obrera de los Estados Unidos Mexicanos
2
Unión Obreros Municipales (Buenos Aires, Argentina)
2
Amalgamated Association of Iron, Steel, and Tin Workers of North America
1
Amalgamated Association of Street, Electric Railway and Motor Coach Employees of America
1
Amalgamated Clothing Workers of America
1
Amalgamated Clothing and Textile Workers Union
1
Amalgamated Transit Union
1
American Federation of Musicians
1
American Labor Union
1
American Newspaper Guild
1
Bakery, Confectionery, and Tobacco Workers International Union
1
Brotherhood of Locomotive Engineers (U.S.)
1
Brotherhood of Maintenance of Way Employees
1
Building and Construction Trades Council of Alameda County
1
Building and Construction Trades Council of San Joaquin County (Calif.)
1
California State Federation of Labor
1
Central California Non-partisan Alliance
1
Central Labor Council of Alameda County
1
Central Labor Council of San Joaquin County (Calif.)
1
Confédération des syndicats chrétiens de Belgique
1
Federasi Serikat Pekerja Seluruh Indonesia
1
Federated Railway Brotherhoods and Allied Crafts of Alameda County
1
Food, Tobacco, Agricultural, and Allied Workers Union of America
1
Industrial Democracy League
1
Industrial Trades Union of America
1
International Association of Machinists
1
International Association of Machinists and Aerospace Workers
1
International Union, United Automobile, Aerospace, and Agricultural Implement Workers of America
1
International Union, United Automobile, Aircraft, and Agricultural Implement Workers of America
1
International Woodworkers of America
1
Kern County Labor Council
1
Labor Education & Research Project (U.S.)
1
Malaysian Trades Union Congress
1
National Farm Workers Association
1
Newspaper Guild
1
Packinghouse Workers Organizing Committee
1
Republiški svet ZSJ za Slovenijo
1
Retail, Wholesale and Department Store Union
1
San Francisco Labor Council
1
Share Croppers Union
1
Shop Stewards' and Workers' Committee Movement (Great Britain)
1
Sindicato de Acción y Mejoramiento Ferrocarrilero (Guatemala)
1
Sociedad de Auxilio Mutuo Ferrocarrilero (Guatemala)
1
United Farm Workers
1
United Farm Workers Organizing Committee
1
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