Columbia subject headings:
Harvard subject headings:
Agricultural laborers--Mexico--Veracruz (State)--Political activity.
Agriculture--Economic aspects--Mexico--Veracruz (State)
Veracruz-Llave (Mexico : State)--Rural conditions.
Princeton subject headings:
Agricultural laborers--Mexico--Vera Cruz (State)--Political activity.
Agriculture--Economic aspects--Mexico--Vera Cruz (State).
Veracruz-Llave (Mexico : State)--Rural conditions.