Columbia subject headings:
Amazonas (Colombia : Department)--Economic conditions.
Amazonas (Colombia : Department)--History.
Amazonas (Colombia : Department)--Social life and customs.
Harvard subject headings:
Amazonas (Colombia : Department)--Economic conditions.
Amazonas (Colombia : Department)--History.
Amazonas (Colombia : Department)--Social life and customs.
Princeton subject headings:
Amazonas (Colombia : Comisaría)--Economic conditions--Congresses.
Amazonas (Colombia : Comisaría)--History--Congresses.
Amazonas (Colombia : Comisaría)--Social conditions--Congresses.