Columbia subject headings:
Harvard subject headings:
Agricultural industries--Brazil--Paraná (State)
Agriculture, Cooperative--Brazil--Paraná (State)
Agriculture--Economic aspects--Brazil--Paraná (State)
Economic geography.
Regional planning--Brazil--Paraná (State)
Princeton subject headings:
Agriculture, Cooperative--Brazil--Paraná (State).
Agriculture--Economic aspects--Brazil--Paraná (State).
Economic geography.