Columbia subject headings:
Europe--Politics and government--1871-1918.
Germany--Relations--Poland.
Poland--Politics and government--1796-1918.
Poland--Relations--Germany.
Poland--Relations--Russia.
Polish question.
Russia--Relations--Poland.
Harvard subject headings:
Europe--Politics and government--1871-1918.
Germany--Politics and government--1871-1918.
Poland--Politics and government--1796-1918
Polish question.
Russia--Politics and government--1894-1917.
Princeton subject headings:
Europe--Politics and government--1871-1918.
Germany--Relations--Poland.
Poland--Politics and government--1796-1918.
Poland--Relations--Germany.
Poland--Relations--Russia.
Polish question.
Russia--Relations--Poland.