Columbia subject headings:
Bohr, Niels, 1885-1962.
Nuclear physics--History.
Physicists--Denmark--Biography.
Harvard subject headings:
Biographies
Bohr, Niels, 1885-1962
Nuclear physics--History
Physicists--Denmark--Biography
Princeton subject headings:
Bohr, Niels, 1885-1962.
Physicists--Denmark--Biography.