Columbia subject headings:
Mondolfo, Rodolfo, 1877-1976--Archives--Catalogs.
Philosophers--Argentina--Archives--Catalogs.
Philosophers--Italy--Archives--Catalogs.
Harvard subject headings:
Mondolfo, Rodolfo, 1877-1976--Archives.
Princeton subject headings:
Mondolfo, Rodolfo, 1877-1976--Archives.