Não informado. (1911). American Journal of Public Health. American Public Health Association.
Chicago Style (17. basım) AtıfNão informado. American Journal of Public Health. New York: American Public Health Association, 1911.
MLA (8th ed.) AtıfNão informado. American Journal of Public Health. American Public Health Association, 1911.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..