Columbia subject headings:
Intelligence service--Soviet Union--Biography--Dictionaries.
Secret service--Soviet Union--Biography--Dictionaries.
Soviet Union. Glavnoe razvedyvatelʹnoe upravlenie--History.
Harvard subject headings:
Espionage--Soviet Union--History.
Intelligence officers--Soviet Union--Biography
Intelligence service--Soviet Union--Biography
Military intelligence--Soviet Union--History.
Soviet Union. Glavnoe razvedyvatelʹnoe upravlenie
Spies--Soviet Union--Biography
Princeton subject headings: