Columbia subject headings:
Chamberlain, John, 1927-2011--Exhibitions.
De Kooning, Willem, 1904-1997--Exhibitions.
Harvard subject headings:
Chamberlain, John, 1927---Exhibitions.
Chamberlain, John, 1927-2011--Exhibitions.
De Kooning, Willem, 1904-1997--Exhibitions.
Princeton subject headings: