Columbia subject headings:
Art--Expertising.
Thode, Henry, 1857-1920--Criticism and interpretation.
Harvard subject headings:
Art--Expertising
Thode, Henry, 1857-1920--Criticism and interpretation.
Thode, Henry, 1857-1920.
Princeton subject headings:
Art critics--Germany--Biography.
Thode, Henry, 1857-1920.