Columbia subject headings:
Betancourt, Rómulo, 1908-1981.
Presidents--Venezuela--Biography.
Venezuela--Politics and government--20th century.
Harvard subject headings:
Betancourt, Rómulo, 1908-1981.
Presidents--Venezuela--Biography
Venezuela--Politics and government--20th century
Princeton subject headings:
Betancourt, Rómulo, 1908-1981.
Presidents--Venezuela--Biography.
Venezuela--Politics and government--20th century.