Não informado. (1930). Monthly bulletin of the Indiana State Board of Health. Indiana State Board of Health.
Chicago-viite (17. p.)Não informado. Monthly Bulletin of the Indiana State Board of Health. Indianapolis, Ind: Indiana State Board of Health, 1930.
MLA-viite (8. p.)Não informado. Monthly Bulletin of the Indiana State Board of Health. Indiana State Board of Health, 1930.
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