Columbia subject headings:
Agricultural laborers--Brazil--Paraíba (State)--Economic conditions.
Agricultural wages--Brazil--Paraíba (State)
Agriculture--Economic aspects--Brazil--Paraíba (State)
Migration, Internal--Brazil--Paraíba (State)
Harvard subject headings:
Agricultural laborers--Brazil--Paraíba (State)--Economic conditions.
Agricultural wages--Brazil--Paraíba (State)
Agriculture--Economic aspects--Brazil--Paraíba (State)
Brazil, Northeast--Social conditions.
Migration, Internal--Brazil, Northeast.
Migration, Internal--Brazil, South.
Migration, Internal--Brazil--Paraíba (State)
Plantation workers--Brazil, Northeast.
Rural-urban migration--Brazil, Northeast.
Princeton subject headings:
Brazil, Northeast--Social conditions.
Migration, Internal--Brazil, Northeast.
Migration, Internal--Brazil, South.
Plantation workers--Brazil, Northeast.
Rural-urban migration--Brazil, Northeast.