Columbia subject headings:
Harvard subject headings:
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Austria--Tyrol--Aerial operations, American.
World War, 1939-1945--Austria--Vorarlberg--Aerial operations, American.
World War, 1939-1945--Campaigns--Austria.
World War, 1939-1945--Campaigns--Italy.
World War, 1939-1945--Italy--Trentino-Alto Adige--Aerial operations, American.
Princeton subject headings:
World War, 1939-1945--Austria--Tyrol--Aerial operations, American.
World War, 1939-1945--Austria--Vorarlberg--Aerial operations, American.
World War, 1939-1945--Italy--Trentino-Alto Adige--Aerial operations, American.