Columbia subject headings:
Barbizon school--Exhibitions.
Landscape painting, French--19th century--Exhibitions.
Plein air painting--France--Barbizon--Exhibitions.
Harvard subject headings:
Barbizon school--Exhibitions.
Landscape painting, French--19th century--Exhibitions
Plein air painting--France--Exhibitions.
Princeton subject headings:
Barbizon school--Exhibitions.
Landscape painting--France--19th century--Exhibitions.
Painting, French--Exhibitions.
Painting, Modern--France--19th century--Exhibitions.