Columbia subject headings:
Germany (East)--Boundaries--Germany (West)
Germany (East)--Politics and government.
Germany (West)--Boundaries--Germany (East)
Harvard subject headings:
Germany (East)--Boundaries--Germany (West)
Germany (East)--Politics and government.
Germany (West)--Boundaries--Germany (East)
Princeton subject headings:
Germany (East)--Boundaries--Germany (West)
Germany (East)--Politics and government.
Germany (West)--Boundaries--Germany (East)