Columbia subject headings:
Harvard subject headings:
Inland navigation--Bolivia.
Inland water transportation--Bolivia.
Inland water transportation--Southern Cone of South America.
Paraguay River--Navigation.
Paraná River (Brazil-Argentina)--Navigation.
Southern Cone of South America--Economic integration.
Princeton subject headings:
Bolivia--Economic conditions--1982-
Inland water transportation--South America.
Paraguay River--Navigation.
Paraná River (Brazil-Argentina)--Navigation.
Transportation--Bolivia.