Columbia subject headings:
Harvard subject headings:
Münster in Westfalen (Germany)--History--Bombardment, 1940-1944.
Münster in Westfalen (Germany)--History--Bombardment, 1943-1945.
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Aerial operations, British.
Princeton subject headings:
Münster in Westfalen (Germany)--History--Bombardment, 1943-1945.
World War, 1939-1945--Aerial operations, American.
World War, 1939-1945--Aerial operations, British.