Não informado. (1930). Monthly bulletin of the Indiana State Board of Health. Indiana State Board of Health.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Monthly Bulletin of the Indiana State Board of Health. Indianapolis, Ind: Indiana State Board of Health, 1930.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Monthly Bulletin of the Indiana State Board of Health. Indiana State Board of Health, 1930.
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