Columbia subject headings:
Australia--Foreign relations.
Canada--Foreign relations.
Emigration and immigration law.
France--Foreign relations.
Haiti--Foreign relations.
Hong Kong (China)--Foreign relations.
Netherlands--Foreign relations.
Noncitizens.
United States--Foreign relations.
Harvard subject headings:
Emigration and immigration.
United States--Emigration and immigration--Government policy.
Princeton subject headings:
Emigration and immigration law.
Noncitizens.