Columbia subject headings:
Harvard subject headings:
Germany--Intellectual life--18th century.
Germany--Social life and customs--18th century.
Intellectuals--Germany--Social conditions--18th century.
Interpersonal relations--Germany--History--18th century.
Princeton subject headings:
Germany--Intellectual life--18th century.
Germany--Social life and customs--18th century.
Intellectuals--18th century--Social aspects--Germany.
Interpersonal relations--Germany--18th century.