Columbia subject headings:
Schweinfurt (Germany)--History--Bombardment, 1943.
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Aerial operations, German.
Harvard subject headings:
Schweinfurt (Germany)--History--Bombardment, 1943.
United States. Air Force--History--World War, 1939-1945.
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Germany--Schweinfurt.
Princeton subject headings:
Schweinfurt (Germany)--Bombardment, 1943.
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Aerial operations, German.