Columbia subject headings:
Harvard subject headings:
Espionage, Soviet--Great Britain.
Intelligence service--Great Britain.
Rothschild, Nathaniel Mayer Victor Rothschild, Baron, 1910-1990
Secret service--Great Britain
Princeton subject headings:
Espionage, Soviet--Great Britain.
Rothschild, Nathaniel Mayer Victor Rothschild, Baron, 1910-1990.
Secret service--Great Britain.