Columbia subject headings:
Bombardment--Germany.
World War, 1939-1945--Aerial operations.
World War, 1939-1945--Destruction and pillage--Germany.
World War, 1939-1945--Germany.
Harvard subject headings:
Bombardment--Germany.
Bombing, Aerial--Germany.
Germany--History--1933-1945.
World War, 1939-1945--Aerial operations
World War, 1939-1945--Destruction and pillage--Germany.
World War, 1939-1945--Germany.
Princeton subject headings:
Bombardment--Germany.
World War, 1939-1945--Aerial operations.
World War, 1939-1945--Destruction and pillage--Germany.
World War, 1939-1945--Germany.