Columbia subject headings:
Pirapama River Valley (Brazil)--Description and travel.
Pirapama River Valley (Brazil)--History.
Harvard subject headings:
Pirapama River Valley (Brazil)--Description and travel.
Pirapama River Valley (Brazil)--History.
Princeton subject headings:
Pirapama River Valley (Brazil)--Description and travel.
Pirapama River Valley (Brazil)--History.