Columbia subject headings:
Bolivia--Description and travel.
Mines and mineral resources--Bolivia.
Mines and mineral resources--California.
Panama Canal (Panama)
Titicaca, Lake (Peru and Bolivia)
Harvard subject headings:
Bolivia--Description and travel.
Mines and mineral resources--Bolivia
Mines and mineral resources--California
Panama Canal (Panama)
Titicaca, Lake (Peru and Bolivia)
Princeton subject headings:
Bolivia--Description and travel.
Mines and mineral resources--Bolivia.
Mines and mineral resources--California.
Panama Canal (Panama)
Titicaca, Lake (Peru and Bolivia)