Columbia subject headings:
Delgado Chalbaud, Carlos, 1909-1950.
Urbina, Rafael Simón, 1897-1950.
Venezuela--Politics and government--1935-1958.
Harvard subject headings:
Delgado Chalbaud, Carlos, 1909-1950.
Urbina, Rafael Simón, 1897-1950.
Venezuela--Politics and government--1935-1958.
Princeton subject headings: