Columbia subject headings:
Germany--Historiography.
Germany--Relations--Poland.
Historiography--Germany.
Historiography--Poland.
Poland--Historiography.
Poland--Relations--Germany.
Harvard subject headings:
Germany--Historiography.
Germany--History--Historiography.
Germany--Relations--Poland.
Historiography--Germany
Historiography--Poland
Poland--Historiography
Poland--History--Historiography.
Poland--Relations--Germany
Princeton subject headings: