References
- Gordon, D.R. (1994). The return of the dangerous classes: Drug prohibition and policy politics. New York: W.W. Norton & Co.
- ONS. (2017). Deaths relating to drug poisoning in England and Wales: 2016 registrations. Retrieved from https://www.ons.gov.uk/peoplepopulationandcommunity/birthsdeathsandmarriages/deaths/bulletins/deathsrelatedtodrugpoisoninginenglandandwales/2016registrations#things-you-need-to-know-about-this-release