Columbia subject headings:
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.
Social sciences--Philosophy--History.
Sociology--Germany--History.
Harvard subject headings:
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.
Social sciences--Philosophy--History.
Sociology--Germany--History
Princeton subject headings:
Germany--Intellectual life--19th century.
Germany--Intellectual life--20th century.
Social sciences--Philosophy--History.
Sociology--Germany--History.