Columbia subject headings:
Harvard subject headings:
Calderoni, Mario, 1879-1914.
Florence (Italy)--Intellectual life--20th century.
Italian periodicals--Italy--Florence--History--20th century.
Princeton subject headings:
Calderoni, Mario, 1879-1914.
Florence (Italy)--Intellectual life--20th century.
Pragmatism--History--20th century.