Columbia subject headings:
Petroleum industry and trade--Government ownership--Venezuela.
Petroleum industry and trade--Venezuela.
Petróleos de Venezuela, S.A.
Venezuela--Economic policy.
Harvard subject headings:
Petroleum industry and trade--Government ownership--Venezuela
Petroleum industry and trade--Venezuela
Petróleos de Venezuela, S.A.
Venezuela--Economic policy.
Princeton subject headings:
Petroleum industry and trade--Government ownership--Venezuela.
Petroleum industry and trade--Venezuela.
Petróleos de Venezuela, S.A.
Venezuela--Economic policy.