Columbia subject headings:
Cuba--Emigration and immigration.
Political refugees--Government policy--United States.
United States--Emigration and immigration--Government policy.
Harvard subject headings:
Cuba--Emigration and immigration.
Political refugees--Government policy--United States.
United States--Emigration and immigration--Government policy.
Princeton subject headings:
Cuba--Emigration and immigration.
Political refugees--Government policy--United States.
United States--Emigration and immigration--Government policy.