Columbia subject headings:
Harvard subject headings:
Economic development projects--Bolivia--Ravelo.
Economic development projects--Bolivia--Zudáñez.
Ravelo (Bolivia)--Economic conditions.
Zudáñez (Bolivia)--Economic conditions.
Princeton subject headings:
Economic development projects--Bolivia--Ravelo.
Economic development projects--Bolivia--Zudañez.
Ravelo (Bolivia)--Economic conditions.
Zudáñez (Bolivia)--Economic conditions.