Columbia subject headings:
Historians--Italy--Correspondence.
Italy--History--1914-1945.
Volpe, Gioacchino, 1876-1971--Correspondence.
Harvard subject headings:
Historians--Italy--Correspondence
Italy--History--1914-1945.
Volpe, Gioacchino, 1876-1971--Correspondence.
Princeton subject headings:
Historians--Italy--Correspondence.
Italy--History--1914-1945.
Volpe, Gioacchino, 1876-1971--Correspondence.