Não informado. (1921). American Journal of Hygiene. John Hopkins University, School of Hygiene and Public Health.
Čikaški stil citiranja (17. izdanje)Não informado. American Journal of Hygiene. Baltimore, Md: John Hopkins University, School of Hygiene and Public Health, 1921.
MLA način citiranja (8. izdanje)Não informado. American Journal of Hygiene. John Hopkins University, School of Hygiene and Public Health, 1921.
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