Columbia subject headings:
Droysen, Johann Gustav, 1808-1884. Historik.
Historiography.
History--Methodology.
History--Philosophy.
Harvard subject headings:
Droysen, Johann Gustav, 1808-1884. Historik.
Historiography.
History--Methodology
History--Philosophy
Princeton subject headings:
Droysen, Johann Gustav, 1808-1884. Historik.
Historiography.
History--Methodology.
History--Philosophy.