Columbia subject headings:
Harvard subject headings:
Agricultural laborers--California--Ventura County.
Citrus fruit industry--California--Ventura County--Employees.
Foreign workers, Mexican--California--Ventura County.
Labor supply--California--Ventura County.
Princeton subject headings:
Agricultural laborers--California--Ventura County.
Citrus fruit industry--California--Ventura County--Employees.
Foreign workers, Mexican--California--Ventura County.
Labor supply--California--Ventura County.