Columbia subject headings:
Harvard subject headings:
Brandenburg (Germany : State)--History
Brandenburg (Germany : State)--Politics and government.
Germany (East)--Administrative and political divisions.
Germany (East)--Politics and government.
Princeton subject headings:
Brandenburg (Germany : State)--Politics and government--20th century.
Cottbus (Germany : Bezirk)--Politics and government--20th century.
Frankfurt an der Oder (Germany : Bezirk)--Politics and government--20th century.
Potsdam (Germany : Bezirk)--Politics and government--20th century.