Columbia subject headings:
Harvard subject headings:
Foreign workers--Government policy--Japan
Foreign workers--Government policy--United States
Japan--Emigration and immigration--Government policy.
United States--Emigration and immigration--Government policy.
Princeton subject headings:
Foreign workers--Government policy--Japan.
Foreign workers--Government policy--United States.
Japan--Emigration and immigration--Government policy.
United States--Emigration and immigration--Government policy.