Columbia subject headings:
Harvard subject headings:
Austria--Emigration and immigration--History--20th century.
Germany--Emigration and immigration--History--20th century.
Labor mobility--Austria--History--20th century.
Labor mobility--Germany--History--20th century.
Switzerland--Emigration and immigration--Government policy--History--20th century.
Women foreign workers--Austria--History--20th century.
Women foreign workers--Employment--Foreign countries--History--20th century.
Women foreign workers--Employment--Switzerland--History--20th century.
Women foreign workers--Germany--History--20th century.
Women household employees--Austria--History--20th century.
Women household employees--Employment--Foreign countries--History--20th century.
Women household employees--Employment--Switzerland--History--20th century.
Women household employees--Germany--History--20th century.
Princeton subject headings:
Austria--Emigration and immigration--History--20th century.
Germany--Emigration and immigration--History--20th century.
Labor mobility--Austria--History--20th century.
Labor mobility--Germany--History--20th century.
Switzerland--Emigration and immigration--Government policy--History--20th century.
Women foreign workers--Austria--History--20th century.
Women foreign workers--Employment--Foreign countries--History--20th century.
Women foreign workers--Employment--Switzerland--History--20th century.
Women foreign workers--Germany--History--20th century.
Women household employees--Austria--History--20th century.
Women household employees--Employment--Foreign countries--History--20th century.
Women household employees--Employment--Switzerland--History--20th century.
Women household employees--Germany--History--20th century.