Columbia subject headings:
Harvard subject headings:
Air warfare--History
Bombing, Aerial--China--Chongqing--History.
Chongqing (China)--History.
Japan. Kaigun--Aviation--History.
Sino-Japanese War, 1937-1945--Aerial operations, Japanese
Princeton subject headings:
Air warfare--East Asia--History.
Bombing, Aerial--China--Chongqing Region--History.
Japan. Kaigun--Aviation--History.
Sino-Japanese War, 1937-1945--Aerial operations, Japanese.