Columbia subject headings:
Bocconi, Alessandro, 1873-1960.
Socialism--Italy--History--20th century.
Socialists--Italy--Biography.
Harvard subject headings:
Bocconi, Alessandro, 1873-1960.
Socialism--Italy--20th century.
Socialism--Italy--History--20th century
Socialists--Italy--Biography
Princeton subject headings:
Bocconi, Alessandro, 1873-1960.
Socialism--Italy--History--20th century.
Socialists--Italy--Biography.