Columbia subject headings:
Harvard subject headings:
Gatti-Casazza, Giulio, 1869-1940.
Impresarios--New York (State)--Biography.
Opera--New York (State)--New York
Princeton subject headings:
Gatti-Casazza, Giulio, 1869-1940.
Impresarios--New York (State)--Biography.
Opera--New York (State)--New York.