Columbia subject headings:
Harvard subject headings:
Education--France--History--19th century
Education--France--History--20th century
Education--Germany--History--19th century
Education--Germany--History--20th century
Princeton subject headings:
Education--France--History--19th century.
Education--France--History--20th century.
Education--Germany--History--19th century.
Education--Germany--History--20th century.