APA (7th ed.) Zitazioa
United Kingdom Crime, Defence & Security Report. Fitch Solutions Group Limited.
Chicago Style (17th ed.) Zitazioa
United Kingdom Crime, Defence & Security Report. Fitch Solutions Group Limited.
MLA (9th ed.) Zitazioa
United Kingdom Crime, Defence & Security Report. Fitch Solutions Group Limited.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.