Columbia subject headings:
Agricultural laborers--Mexico--Social conditions.
Agricultural laborers--Mexico.
Agricultural laborers--Social aspects--Mexico.
Peasants--Mexico.
Tomato industry--Employees--Mexico.
Harvard subject headings:
Agricultural laborers--Mexico
Agricultural laborers--Mexico--Social conditions.
Agricultural laborers--Social aspects--Mexico.
Peasants--Mexico
Tomato industry--Mexico--Employees.
Princeton subject headings:
Agricultural laborers--Mexico--Social conditions.
Agricultural laborers--Mexico.
Agricultural laborers--Social aspects--Mexico.
Peasants--Mexico.
Tomato industry--Employees--Mexico.