Columbia subject headings:
Cocoa--Venezuela--History--Sources.
Venezuela--Commerce--History--Sources.
Harvard subject headings:
Cacao--Venezuela--History--Sources.
Núñez, Enrique Bernardo, 1895-1964,
Venezuela--History--To 1810--Sources.
Princeton subject headings:
Cacao--Venezuela--History--Sources.
Núñez, Enrique Bernardo, 1895-1964
Venezuela--History--To 1810--Sources.