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Index: " ( 1 2 5 8 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
- U. G. Sato
- U. S. Campaign to end the Israeli Occupation
- U.C.L.A. Black Student Union
- U.C.L.A. Chicano Studies Center
- U.G. Sato
- U.S. Department of Commerce Bureau of the Census
- U.S. Department of Health and Human Services
- U.S. Department Of Health, Education, And Welfare
- U.S. Department of Housing and Urban Development
- U.S. Government Printing
- U.S. Government Printing Office
- U.S. Office of War Information
- U.S. Treasury Office
- UC Student-Worker Union (UAW 2865)
- UCLA Labor Center
- UE Local 274
- UFW Strike Support Committee
- Ukrainian Association
- Undugu Society of Kenya
- Uni(e)s Contre Une Immigration Jetable
- Uniao Nacional dos Trabalhadores Angolanos (UNTA)
- UNIDOS Youth Coalition
- Union de las Fuerzas Patrioticas Democraticas Haitianas (IFOPADA)
- Union des étudiants communistes
- Union Nacional de Agricultores y Ganaderos U. N. A. G.
- Union of Medical Marijuana Patients
- Union of Needletrades, Industrial and Textile Employees
- Union Pacifiste
- Union Popular de Mujeres Peruanas
- Unitas
- Unite Against Fascism
- United Automobile, Aerospace and Agricultural Implement Workers of America
- United Automobile, Aerospace and Argricultural Implement Workers of America (UAW)
- United Electrical, Radio and Machine Workers of America
- United Farm Workers
- United Farm Workers (UFW)
- United Farm Workers of America
- United Farm Workers Organizing Committee
- United Farmworkers Union
- UNITED for Intercultural Action
- United For Peace & Justice
- United for Peace and Justice
- United Friends of Geronimo (Pratt) Ji Jaga
- United Healthcare Workers East
- United Long Term Care Workers
- United Nation's Children's Fund
- United Nations
- United Nations Centre Against Apartheid
- United Nations Children's Fund (UNICEF)
- United Nations Development Fund for Women.
- United Nations Development Programme (UNDP)
- United Nations Educational Scientific and Cultural Organization (UNESCO)
- United Nations Environment Programme
- United Posters, Ltd
- United States Army
- United States Environmental Protection Agency (EPA)
- United States Out of Central America
- United States. Deptartment of the Treasury
- United States. Office of Civilian Defense
- United Steelworkers of America
- United Transportation Union
- United Way of America
- United Women's Contingent
- Unity Works
- Universal Poster Co.
- Universal Press Syndicate
- Universidad Autonoma Metropolitana-Azcapotzalco
- Universidad De El Salvador
- Universidad Obrera de México
- University of British Columbia
- University of California, Irvine MEChA
- University of California, Santa Barbara
- University of Southern California
- University of Waterloo. Faculty of Environmental Studies.
- University Press Syndicate
- Unión de Campesinos
- Unión de Mujeres Republicanas Revolucionarias
- Unión Nacional de Escritorias y Artistas de Cuba
- Unión Nacional de Mujeres Guatemaltecas
- Unofficial regional help center (INSEC)
- unVOZ
- upso
- Upstart
- Urban Revision
- Ursula Meyer
- Ursula Ries
- US Human Rights Network
- US Social Forum
- US-China Peoples Friendship Association (USCPFA)
- US/Guatemala Labor Education Project
- USAID
- USOCA
- Utopia Graphics
- Uwe Steinberg