Columbia subject headings:
Germany--Foreign relations--Poland.
Germany--Relations--Poland.
Poland--Foreign relations--Germany.
Poland--Relations--Germany.
Harvard subject headings:
Germany--Foreign relations--Poland.
Germany--Relations--Poland.
Poland--Foreign relations--Germany
Poland--Relations--Germany
Princeton subject headings:
Germany--Foreign relations--Poland.
Germany--Relations (general) with Poland.
Poland--Foreign relations--Germany.
Poland--Relations (general) with Germany.