Columbia subject headings:
Art--Collectors and collecting--Italy--Rome--History--19th century--Congresses.
Art--Collectors and collecting--Italy--Rome--History--20th century--Congresses.
Art--Economic aspects--Italy--Rome--History--19th century--Congresses.
Art--Economic aspects--Italy--Rome--History--20th century--Congresses.
Art--Italy--Rome--Marketing--History--19th century--Congresses.
Art--Italy--Rome--Marketing--History--20th century--Congresses.
Harvard subject headings:
Art--Collectors and collecting--Italy--Rome--19th century--Congresses.
Art--Collectors and collecting--Italy--Rome--20th century--Congresses.
Art--Economic aspects--Italy--Rome--History--19th century--Congresses.
Art--Economic aspects--Italy--Rome--History--20th century--Congresses.
Galerie Sangiorgi--Congresses.
Princeton subject headings:
Art--Collectors and collecting--Italy--Rome--History--19th century--Congresses.
Art--Collectors and collecting--Italy--Rome--History--20th century--Congresses.
Art--Economic aspects--Italy--Rome--History--19th century--Congresses.
Art--Economic aspects--Italy--Rome--History--20th century--Congresses.
Art--Italy--Rome--Marketing--History--19th century--Congresses.
Art--Italy--Rome--Marketing--History--20th century--Congresses.