Columbia subject headings:
Polish people--Switzerland--Politics and government.
World War, 1914-1918--Poland.
World War, 1914-1918--Public opinion.
World War, 1914-1918--War work--Switzerland.
Harvard subject headings:
Poland--Emigration and immigration
Poland--History--Autonomy and independence movements
Polish people--Foreign countries--History--20th century.
Polish people--Switzerland--History--20th century.
Polish people--Switzerland--Politics and government.
Polish question.
Switzerland--Emigration and immigration.
World War, 1914-1918--Switzerland
Princeton subject headings: