Columbia subject headings:
Harvard subject headings:
Germany--History--Unification, 1990.
Poland--History--20th century
Statesmen--Germany--Attitudes.
Statesmen--Poland--Attitudes.
Princeton subject headings:
Germany--History--Unification, 1990.
Poland--History--20th century.
Statesmen--Germany--Attitudes.
Statesmen--Poland--Attitudes.