Columbia subject headings:
Harvard subject headings:
Bombing, Aerial--Austria--History--20th century.
Bombing, Aerial--Italy--History--20th century.
World War, 1939-1945--Austria--Tyrol--Aerial operations.
World War, 1939-1945--Austria--Vorarlberg--Aerial operations.
World War, 1939-1945--Italy--Trentino-Alto Adige--Aerial operations.
Princeton subject headings:
Bombing, Aerial--Austria--History--20th century.
Bombing, Aerial--Italy--History--20th century.
World War, 1939-1945--Austria--Tyrol--Aerial operations.
World War, 1939-1945--Austria--Vorarlberg--Aerial operations.
World War, 1939-1945--Italy--Trentino-Alto Adige--Aerial operations.