Columbia subject headings:
Friedrich, Caspar David, 1774-1840.
Landscape painting, German--19th century.
Harvard subject headings:
Friedrich, Caspar David, 1774-1840--Criticism and interpretation.
Landscape painting, German.
Landscape painting--Germany--19th century.
Landscapes in art.
Romanticism in art--Germany.
Romanticism in art.
Princeton subject headings: