Columbia subject headings:
Drawing--19th century--Exhibitions.
Drawing--20th century--Exhibitions.
Watercolor painting--19th century--Exhibitions.
Watercolor painting--20th century--Exhibitions.
Harvard subject headings:
Drawing--19th century--Exhibitions
Drawing--20th century--Exhibitions
Watercolor painting--19th century--Exhibitions.
Watercolor painting--20th century--Exhibitions.
Princeton subject headings:
Drawing--19th century--Exhibitions.
Drawing--20th century--Exhibitions.
Watercolor painting--19th century--Exhibitions.
Watercolor painting--20th century--Exhibitions.