Columbia subject headings:
Bolivia--Politics and government--1952-1982.
Petroleum industry and trade--Bolivia.
Petroleum industry and trade--Brazil.
Harvard subject headings:
Bolivia--Foreign relations--Brazil.
Brazil--Foreign relations--Bolivia.
Gas industry--Bolivia.
Gas industry--Brazil.
Princeton subject headings:
Bolivia--Politics and government--1952-1982.
Petroleum industry and trade--Bolivia.
Petroleum industry and trade--Brazil.