Columbia subject headings:
Harvard subject headings:
Biographies.
Intelligence officers--Crimes against--Russia (Federation)
Poisoning--Political aspects--Russia (Federation)
Russia (Federation)--Politics and government--21st century.
Skripal, Sergei, 1951-
Spies--Great Britain--Biography.
Spies--Russia (Federation)--Biography.
Princeton subject headings:
Intelligence officers--Crimes against--Russia (Federation).
Poisoning--Political aspects--Russia (Federation).
Russia (Federation)--Politics and government--21st century.
Skripalʹ, Sergeĭ.
Spies--Great Britain--Biography.
Spies--Russia (Federation)--Biography.