Migrant labor. Colorado Account of two typical migrant families. Post Contemporary Ag 31, 1969 p.6- 9 Wetbacks upset wage scale and promote health problems. Post S 21, 1969 p.1 Transportation rings foil control of wetback labor. Post S 22, 1969 p.21 Mexican-American families ignore closing of Ft. Lupton labor camp. RMN S 2'], 1969 p.8
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