Columbia subject headings:
Community power--Case studies.
Pernambuco (Brazil)--Rural conditions--Case studies.
Harvard subject headings:
Community power--Brazil--Pernambuco--Case studies.
Pernambuco (Brazil)--Rural conditions--Case studies.
Princeton subject headings:
Case studies.
Community power--Brazil--Pernambuco--Case studies.
Pernambuco (Brazil)--Rural conditions--Case studies.