Columbia subject headings:
Argentina--Emigration and immigration.
Emigration and immigration law.
Labor (International law)
Labor laws and legislation, International.
Latin America--Emigration and immigration.
Treaties.
Harvard subject headings:
Argentina--Emigration and immigration.
Emigration and immigration law.
Labor laws and legislation, International.
Labor laws and legislation--Latin America
Latin America--Emigration and immigration.
Social legislation
South America--Emigration and immigration.
Princeton subject headings: