Columbia subject headings:
Colombia--Emigration and immigration.
Foreign workers, Colombian--Venezuela.
Illegal immigration--Venezuela.
Noncitizens--Venezuela.
Sugar workers--Venezuela.
Venezuela--Emigration and immigration.
Harvard subject headings:
Colombia--Emigration and immigration.
Foreign workers, Colombian--Venezuela.
Illegal immigration--Venezuela.
Noncitizens--Venezuela.
Sugar workers--Venezuela.
Venezuela--Emigration and immigration.
Princeton subject headings:
Colombia--Emigration and immigration.
Foreign workers, Colombian--Venezuela.
Illegal aliens--Venezuela.
Sugar workers--Venezuela.
Venezuela--Emigration and immigration.