Columbia subject headings:
Agriculture--Brazil--Societies, etc.
Brazil--Rural conditions.
Farmers--Brazil--Societies, etc.
Farms, Small--Brazil.
Movimento dos Pequenos Agricultores.
Social movements--Brazil.
Harvard subject headings:
Agriculture--Brazil--Societies, etc.
Brazil--Rural conditions.
Farmers--Brazil--Political activity.
Farmers--Brazil--Societies, etc.
Farms, Small--Brazil.
Movimento dos Pequenos Agricultores.
Social movements--Brazil.
Princeton subject headings: