Columbia subject headings:
Harvard subject headings:
Bruckmann, Elsa--Friends and associates.
Bruckmann, Hugo--Friends and associates.
Germany--Intellectual life--20th century.
Hitler, Adolf, 1889-1945--Friends and associates.
Salons--Germany--History--20th century.
Princeton subject headings:
Bruckmann, Elsa--Friends and associates.
Bruckmann, Hugo--Friends and associates.
Germany--Intellectual life--20th century.
Hitler, Adolf, 1889-1945--Friends and associates.
Salons--Germany--History--20th century.