Não informado. (2002). California's health. Department of Public Health.
Chicago-referens (17:e uppl.)Não informado. California's Health. Berkeley, Calif: Department of Public Health, 2002.
MLA-referens (8:e uppl.)Não informado. California's Health. Department of Public Health, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.