Columbia subject headings:
Harvard subject headings:
German language--19th century.
German language--Philosophy.
Gruppe, O. F. (Otto Friedrich), 1804-1876.
Hermann, Conrad.
Language and languages--19th century.
Language and languages--Philosophy
Reinhold, Karl Leonhard, 1758-1823.
Princeton subject headings:
German language--19th century.
German language--Philosophy.
Gruppe, O. F. (Otto Friedrich), 1804-1876.
Hermann, Conrad.
Language and languages--19th century.
Language and languages--Philosophy.
Reinhold, Karl Leonhard, 1758-1823.