Columbia subject headings:
Friedrich, Caspar David, 1774-1840--Exhibitions.
Romanticism in art--Germany--Exhibitions.
Harvard subject headings:
Friedrich, Caspar David, 1774-1840--Exhibitions.
Romanticism in art--Exhibitions
Romanticism in art--Germany--Exhibitions.
Princeton subject headings:
Friedrich, Caspar David, 1774-1840--Exhibitions.
Romanticism in art--Germany--Exhibitions.