Columbia subject headings:
Agricultural colonies--Amazon River Region.
Amazon River Region--Economic conditions.
Amazon River Region--Economic policy.
Rural development projects--Amazon River Region.
Harvard subject headings:
Agricultural colonies--Amazon River Region.
Amazon River Region--Economic conditions.
Amazon River Region--Economic policy.
Capitalism--Amazon River Region.
Environmental policy--Amazon River Region
Mineral industries--Amazon River Region.
Rural development projects--Amazon River Region.
Princeton subject headings:
Agricultural colonies--Amazon River Region.
Amazon River Region--Economic conditions.
Amazon River Region--Economic policy.
Rural development projects--Amazon River Region.