Columbia subject headings:
Political refugees--Government policy--United States.
Political refugees--Indochina.
Refugees--Government policy--United States.
Refugees--Indochina.
Harvard subject headings:
Political refugees--Government policy--United States.
Political refugees--Indochina
Refugees--Government policy--United States
Refugees--Indochina
Princeton subject headings:
Political refugees--Government policy--United States.
Political refugees--Indochina.
Refugees--Government policy--United States.
Refugees--Indochina.