Columbia subject headings:
Drawing, American--20th century--Exhibitions.
Drawing, American--Exhibitions.
Lichtenstein, Roy, 1923-1997--Exhibitions.
Harvard subject headings:
Drawing, American--Exhibitions.
Drawing--20th century--United States--Exhibitions.
Lichtenstein, Roy, 1923-1997--Exhibitions.
Princeton subject headings:
Lichtenstein, Roy, 1923-1997--Exhibitions.