Columbia subject headings:
Harvard subject headings:
Sacred music--Italy--Friuli--History--19th century--Congresses.
Sacred music--Italy--Friuli--History--20th century--Congresses.
Princeton subject headings:
Sacred music--Italy--Friuli-Venezia Giulia--History--19th century--Congresses.
Sacred music--Italy--Friuli-Venezia Giulia--History--20th century--Congresses.