Columbia subject headings:
Indians of South America--Venezuela--History.
Indians of South America--Venezuela--Social conditions.
Harvard subject headings:
Apure (Venezuela)--History.
Barinas (Venezuela : State)--History.
Cowboys--Llanos (Colombia and Venezuela)--History.
Ethnology--Llanos (Colombia and Venezuela)
Llanos (Colombia and Venezuela)--History.
Princeton subject headings:
Apure (Venezuela)--History.
Barinas (Venezuela : State)--History.
Cowboys--Llanos (Colombia and Venezuela)--History.
Ethnology--Llanos (Colombia and Venezuela).
Llanos (Colombia and Venezuela)--History.