Columbia subject headings:
Burgess, Guy, 1911-1963.
Espionage, Soviet--Great Britain.
Maclean, Donald, 1913-1983.
Philby, Kim, 1912-1988.
Secret service--Great Britain.
Harvard subject headings:
Princeton subject headings:
Burgess, Guy, 1911-1963.
Espionage, Soviet--Great Britain.
Maclean, Donald, 1913-1983.
Philby, Kim, 1912-1988.
Secret service--Great Britain.