Não informado. (1998). American journal of hygiene. Johns Hopkins University, School of Hygiene and Public Health.
Chicago-Zitierstil (17. Ausg.)Não informado. American Journal of Hygiene. Baltimore, Md: Johns Hopkins University, School of Hygiene and Public Health, 1998.
MLA-Zitierstil (8. Ausg.)Não informado. American Journal of Hygiene. Johns Hopkins University, School of Hygiene and Public Health, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.