Columbia subject headings:
Harvard subject headings:
Censorship--Italy--Valle d'Aosta.
Valle d'Aosta (Italy)--History.
World War, 1939-1945--Italy--Valle d'Aosta.
Princeton subject headings:
Postal service--Censorship--Italy--Valle d'Aosta--History--20th century.
World War, 1939-1945--Censorship--Italy--Valle d'Aosta.
World War, 1939-1945--Underground movements--Italy--Valle d'Aosta.