Não informado. (1930). Monthly bulletin of the Indiana State Board of Health. Indiana State Board of Health.
Chicago-referens (17:e uppl.)Não informado. Monthly Bulletin of the Indiana State Board of Health. Indianapolis, Ind: Indiana State Board of Health, 1930.
MLA-referens (8:e uppl.)Não informado. Monthly Bulletin of the Indiana State Board of Health. Indiana State Board of Health, 1930.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.