Columbia subject headings:
Gómez, Juan Vicente, 1857-1935.
Petroleum industry and trade--Government policy--Venezuela--History--20th century.
Harvard subject headings:
Gómez, Juan Vicente, 1857-1935.
Petroleum industry and trade--Government policy--Venezuela--History--20th century.
Princeton subject headings:
Gómez, Juan Vicente, 1857-1935.
Petroleum industry and trade--Government policy--Venezuela--History--20th century.