Columbia subject headings:
Gola, Emilio, 1851-1923--Catalogs.
Gola, Emilio, 1851-1923--Criticism and interpretation.
Harvard subject headings:
Gola, Emilio, 1852-1925--Catalogs.
Gola, Emilio, 1852-1925--Criticism and interpretation.
Princeton subject headings:
Gola, Emilio, 1852-1925.