Columbia subject headings:
Harvard subject headings:
Bonn (Germany)--Politics and government.
Germany (East)--Politics and government.
Germany (East)--Relations--Germany (West)
Germany (West)--Relations--Germany (East)
Heads of state--Germany (East)
Honecker, Erich--Travel--Germany--Bonn.
Princeton subject headings:
Germany (East)--Politics and government.
Heads of state--Germany (East).
Honecker, Erich--Travel--Germany (West).