Columbia subject headings:
Painting, Italian--19th century.
Painting, Italian--20th century.
Painting--Italy--Pontine Marshes.
Pontine Marshes (Italy)--In art.
Harvard subject headings:
Princeton subject headings:
Painting, Italian--19th century.
Painting, Modern--20th century--Italy.
Painting--Italy--Pontine Marshes.
Pontine Marshes (Italy)--In art.