Columbia subject headings:
Germany--Emigration and immigration--Government policy--History.
Germany--Emigration and immigration--History.
Germany--Emigration and immigration--Political aspects--History.
Social integration--Germany--History.
Harvard subject headings:
Germany--Emigration and immigration--Government policy--History.
Germany--Emigration and immigration--History.
Germany--Emigration and immigration--Political aspects--History.
Social integration--Germany--History.
Princeton subject headings:
Germany--Emigration and immigration--Government policy--History.
Germany--Emigration and immigration--History.
Germany--Emigration and immigration--Political aspects--History.
Social integration--Germany--History.