Columbia subject headings:
Harvard subject headings:
Atomic bomb--History
Hiroshima-shi (Japan)--History--Bombardment, 1945.
Japan--History--1912-1945.
World War, 1939-1945--Japan.
Princeton subject headings:
Atomic bomb--History.
Hiroshima-shi (Japan)--History--Bombardment, 1945.
Japan--History--1912-1945.
World War, 1939-1945--Japan.