Columbia subject headings:
Caruso, Enrico, 1873-1921--Discography.
Harvard subject headings:
Caruso, Enrico, 1873-1921--Discography.
Princeton subject headings:
Caruso, Enrico, 1873-1921--Criticism and interpretation.
Caruso, Enrico, 1873-1921--Discography.
Sound recordings.