Columbia subject headings:
Emigration and immigration--Congresses.
Europe--Emigration and immigration--Congresses.
Latin America--Emigration and immigration.
Latin America--Population policy--Congresses.
Venezuela--Emigration and immigration--Congresses.
Harvard subject headings:
Latin America--Emigration and immigration--Congresses.
Latin American federation--Congresses.
Princeton subject headings:
Latin America--Emigration and immigration--Congresses.
Latin American federation--Congresses.