Columbia subject headings:
Harvard subject headings:
Christlich-Demokratische Union Deutschlands (Germany : West)
Christlich-Soziale Union.
Europe, Eastern--Foreign relations--Germany.
Germany--Foreign relations--Europe, Eastern.
Princeton subject headings:
Christlich-Demokratische Union Deutschlands (Germany : West)
Christlich-Soziale Union.
Europe, Eastern--Foreign relations--Germany (West)
Germany (West)--Foreign relations--Europe, Eastern.