Columbia subject headings:
Artists' preparatory studies--Italy--Congresses.
Bernini, Gian Lorenzo, 1598-1680--Congresses.
Harvard subject headings:
Bernini, Gian Lorenzo, 1598-1680--Congresses.
Princeton subject headings:
Artist's preparatory studies--Italy--Congresses.
Bernini, Gian Lorenzo, 1598-1680--Congresses.