Não informado. (1912). Collected studies from the Bureau of Laboratories of the Department of Health, New York City. Bureau of Laboratories of the Department of Health.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Não informado. Collected Studies from the Bureau of Laboratories of the Department of Health, New York City. New York: Bureau of Laboratories of the Department of Health, 1912.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Não informado. Collected Studies from the Bureau of Laboratories of the Department of Health, New York City. Bureau of Laboratories of the Department of Health, 1912.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.