Columbia subject headings:
Harvard subject headings:
Germany--Foreign relations--Poland.
Germany--History--Study and teaching.
Poland--Foreign public opinion, German
Poland--Foreign relations--Germany
Poland--History--Study and teaching.
Princeton subject headings:
Germany--Foreign relations--Poland.
Germany--History--Study and teaching.
Poland--Foreign public opinion, German.
Poland--Foreign relations--Germany.
Poland--History--Study and teaching.