Não informado. Vaccination inquirer and health review. National Anti-Vaccination League.
Chicago-referens (17:e uppl.)Não informado. Vaccination Inquirer and Health Review. London: National Anti-Vaccination League.
MLA-referens (8:e uppl.)Não informado. Vaccination Inquirer and Health Review. National Anti-Vaccination League.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.