Columbia subject headings:
Harvard subject headings:
Education--Germany--Prussia--History--19th century.
Education--Philosophy
Zerrenner, Carl Christoph Gottlieb, 1780-1851 or 1852.
Princeton subject headings:
Education--Philosophy.
Education--Prussia (Germany)--History--19th century.
Zerrenner, Carl Christoph Gottlieb, 1780-1851 or 1852.