Columbia subject headings:
Beuys, Joseph--Exhibitions.
Bourgeois, Louise, 1911-2010--Exhibitions.
Morris, Robert, 1931-2018--Exhibitions.
Sculpture, Modern--20th century--Exhibitions.
Harvard subject headings:
Beuys, Joseph--Exhibitions.
Bourgeois, Louise, 1911---Exhibitions.
Morris, Robert, 1931-2018--Exhibitions.
Princeton subject headings: