Columbia subject headings:
Harvard subject headings:
Archives and national socialism--Congresses.
Archives--Germany--Prussia--History--20th century--Congresses.
Germany--History--20th century--Archives--Congresses.
Preussisches Geheimes Staatsarchiv--History--20th century--Congresses.
Prussia (Germany)--History--20th century--Archives--Congresses.
Princeton subject headings:
Archives and national socialism--Congresses.
Archives--Germany--Prussia--History--20th century--Congresses.
Preussisches Geheimes Staatsarchiv--History--20th century--Congresses.