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- Agricultural industries --California5
- Labor unions --Migrant agricultural laborers --United States✖[remove]5
- Grape Strike, Calif., 1965-19704
- Grape industry--United States--History--Sources4
- Boycotts--United States.3
- Agricultural laborers--California1
- Boycotts--United States1
- United Farm Workers✖[remove]5
- Chavez, Cesar, 1927---Pictorial works1
- Reuther, Walter, 1907-19701