Columbia subject headings:
Sibelius, Jean, 1865-1957--Appreciation--Italy--Congresses.
Sibelius, Jean, 1865-1957--Criticism and interpretation--Italy--Congresses.
Harvard subject headings:
Sibelius, Jean, 1865-1957--Appreciation--Italy--Congresses.
Sibelius, Jean, 1865-1957--Criticism and interpretation--Congresses.
Princeton subject headings:
Sibelius, Jean, 1865-1957--Appreciation--Italy--Congresses.
Sibelius, Jean, 1865-1957--Criticism and interpretation--Italy--Congresses.