Columbia subject headings:
Harvard subject headings:
Germany--Politics and government--1933-1945.
Libraries and national socialism--Congresses.
Libraries and state--Germany--History--20th century--Congresses.
Libraries--Germany--History--20th century--Congresses.
Preussische Staatsbibliothek--Congresses.
Princeton subject headings:
Book thefts--Germany--History--20th century--Congresses.
Libraries and national socialism--Congresses.
Libraries and state--Germany--History--20th century--Congresses.
Libraries--Germany--History--20th century--Congresses.
Preussische Staatsbibliothek--History--20th century--Congresses.