Columbia subject headings:
Hopper, Edward, 1882-1967--Criticism and interpretation.
Hopper, Edward, 1882-1967--Exhibitions.
Harvard subject headings:
Hopper, Edward, 1882-1967--Criticism and interpretation.
Hopper, Edward, 1882-1967--Exhibitions.
Princeton subject headings:
Hopper, Edward, 1882-1967--Exhibitions.