Columbia subject headings:
Atomic bomb--History.
Chadwick, James, 1891-1974.
Neutrons--Research--Great Britain--History.
Nuclear physicists--Great Britain--Biography.
Harvard subject headings:
Cavendish Laboratory (Cambridge, England). Energy Research Group--History.
Chadwick, James, Sir, 1891-
Neutrons--Research--Great Britain--History.
Nuclear physicists--Great Britain--Biography.
Princeton subject headings:
Cavendish Laboratory (Cambridge, England). Energy Research Group--History.
Chadwick, James, 1891-1974.
Neutrons--Research--Great Britain--History.
Nuclear physicists--Great Britain--Biography.