Não informado. Vaccination inquirer and health review. National Anti-Vaccination League.
Chicago-Zitierstil (17. Ausg.)Não informado. Vaccination Inquirer and Health Review. London: National Anti-Vaccination League.
MLA-Zitierstil (8. Ausg.)Não informado. Vaccination Inquirer and Health Review. National Anti-Vaccination League.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.