Columbia subject headings:
Amazon River--Description and travel.
Expedición "En Canoa del Amazonas al Caribe" (1987-1988)
Orinoco River (Venezuela and Colombia)--Description and travel.
Harvard subject headings:
Amazon River--Description and travel.
Expedición "En Canoa del Amazonas al Caribe" (1987-1988)
Orinoco River (Venezuela and Colombia)--Description and travel.
Princeton subject headings: