Columbia subject headings:
Art--United States--Marketing--History--19th century.
Art--United States--Marketing--History--20th century.
Artists--United States--History--19th century.
Artists--United States--History--20th century.
Harvard subject headings:
Art--United States--Marketing--History--19th century.
Art--United States--Marketing--History--20th century.
Artists--United States--History--19th century.
Artists--United States--History--20th century.
Princeton subject headings:
Art--United States--Marketing--History--19th century.
Art--United States--Marketing--History--20th century.
Artists--United States--History--19th century.
Artists--United States--History--20th century.