Columbia subject headings:
Harvard subject headings:
Istituto storico della resistenza in Toscana--Archives--Catalogs.
Lombardi, Foscolo, 1895-1973--Archives--Catalogs.
Partito socialista italiano--History--Sources--Bibliography--Catalogs.
Socialism--Italy--History--Sources--Bibliography--Catalogs.
Socialism--Italy--Sources--Bibliography--Catalogs.
Princeton subject headings:
Istituto storico della Resistenza in Toscana--Archives--Catalogs.
Lombardi, Foscolo, 1895-1973--Archives--Catalogs.
Partito socialista italiano--History--Sources--Bibliography--Catalogs.
Socialism--Italy--History--Sources--Bibliography--Catalogs.