Não informado. (1930). Monthly bulletin of the Indiana State Board of Health. Indiana State Board of Health.
Παραπομπή σε μορφή Chicago (17η εκδ.)Não informado. Monthly Bulletin of the Indiana State Board of Health. Indianapolis, Ind: Indiana State Board of Health, 1930.
Παραπομπή σε μορφή MLA (8th εκδ.)Não informado. Monthly Bulletin of the Indiana State Board of Health. Indiana State Board of Health, 1930.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.