Não informado. Research in Public Health Administration. Johns Hopkins University, School of Hygiene and Public Health.
Chicago-referens (17:e uppl.)Não informado. Research in Public Health Administration. Baltimore, Md: Johns Hopkins University, School of Hygiene and Public Health.
MLA-referens (8:e uppl.)Não informado. Research in Public Health Administration. Johns Hopkins University, School of Hygiene and Public Health.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.