Columbia subject headings:
Harvard subject headings:
Archival materials--Germany--Congresses.
Archives--Germany--Congresses.
Archives--Public relations--Germany--Congresses.
Archives--Study and teaching--Germany--Congresses.
Education--Germany--Archival resources--Congresses.
History--Study and teaching--Germany--Congresses.
Public relations--Germany--Archival resources--Congresses.
Princeton subject headings:
Archival materials--Germany--Congresses.
Archives--Germany--Congresses.
Education--Germany--Archival resources--Congresses.
Public relations--Germany--Archival resources--Congresses.