Columbia subject headings:
German reunification question (1949-1990)
Harvard subject headings:
Germany--History--Unification, 1990.
Public law--Germany
Public law--Germany (East)
Public law--Germany (West)
Territory, National--Germany.
Princeton subject headings:
Germany--History--Unification, 1990.
Public law--Germany (East).
Public law--Germany (West)
Public law--Germany.
Territory, National--Germany.