Columbia subject headings:
Art, Modern--20th century--Exhibitions.
Art--Private collections--United States--Exhibitions.
Pop art--United States--Exhibitions.
Sonnabend, Ileana--Art collections--Exhibitions.
Sonnabend, Michael--Art collections--Exhibitions.
Harvard subject headings:
Art, Modern--20th century--Exhibitions
Art--Private collections--United States--Exhibitions
Pop art--United States--Exhibitions
Sonnabend, Ileana--Art collections--Exhibitions.
Sonnabend, Michael--Art collections--Exhibitions.
Princeton subject headings:
Art, Modern--20th century--Exhibitions.
Art--Private collections--Exhibitions.
Pop art--Exhibitions.
Sonnabend Gallery (New York, N.Y.)--Exhibitions.