Columbia subject headings:
Dirac, P. A. M. (Paul Adrien Maurice), 1902-1984.
Physics--History.
Harvard subject headings:
Dirac, P. A. M. (Paul Adrien Maurice), 1902-1984.
Physics--History.
Princeton subject headings:
Dirac, P. A. M. (Paul Adrien Maurice), 1902-1984.
Physics--History.