Columbia subject headings:
Art, American--20th century--Themes, motives--Exhibitions.
Art, American--20th century--Themes, motives.
Art, American--Themes, motives--Exhibitions.
Art, American--Themes, motives.
Art, Modern--20th century--United States--Themes, motives--Exhibitions.
Art, Modern--20th century--United States--Themes, motives.
Harvard subject headings:
Art, American--20th century--Exhibitions
Art, American--Themes, motives--Exhibitions.
Art, Modern--20th century--United States--Themes, motives--Exhibitions.
Princeton subject headings:
Art, American--20th century--Themes, motives--Exhibitions.
Art, American--20th century--Themes, motives.