Williamson, S. (2007). The vaccination controversy: The rise, reign and fall of compulsory vaccination for smallpox. Liverpool University Press.
Chicago-referens (17:e uppl.)Williamson, Stanley. The Vaccination Controversy: The Rise, Reign and Fall of Compulsory Vaccination for Smallpox. Liverpool: Liverpool University Press, 2007.
MLA-referens (9:e uppl.)Williamson, Stanley. The Vaccination Controversy: The Rise, Reign and Fall of Compulsory Vaccination for Smallpox. Liverpool University Press, 2007.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.