Columbia subject headings:
Germany--History--20th century--Historiography.
Historiography--Germany.
Harvard subject headings:
Germany--History--1945-1990--Historiography.
Germany--Politics and government--20th century--Congresses.
Germany--Politics and government--20th century--Historiography--Congresses.
Princeton subject headings:
Best books.
Germany--History--20th century--Bibliography.