Columbia subject headings:
Pernambuco (Brazil)--Rural conditions.
Villages--Brazil--Pernambuco--Case studies.
Harvard subject headings:
Pernambuco (Brazil)--Rural conditions.
Pernambuco, Brazil (State)--Rural conditions.
Villages--Brazil--Pernambuco (State)--Case studies.
Princeton subject headings:
Pernambuco, Brazil (State)--Rural conditions.
Villages--Brazil--Pernambuco (State)--Case studies.