Columbia subject headings:
Harvard subject headings:
Agriculture and state--Brazil--Paraíba do Sul River Valley.
Agriculture--Social aspects--Brazil--Paraíba do Sul River Valley.
Paraíba do Sul River Valley (Brazil)--Rural conditions.
Rural-urban relations--Brazil--Paraíba do Sul River Valley.
Sociology, Rural--Brazil--Paraíba do Sul River Valley.
Princeton subject headings:
Agriculture and state--Brazil--Paraíba do Sul River Valley.
Agriculture--Social aspects--Brazil--Paraíba do Sul River Valley.
Paraíba do Sul River Valley (Brazil)--Rural conditions.
Sociology, Rural--Brazil--Paraíba do Sul River Valley.