Nichols, H. J., & Kelser, R. A. (1922). Carriers in infectious diseases: A manual on the importance, pathology, diagnosis and treatment of human carriers. Williams & Wilkins company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Nichols, Henry James, و Raymond Alexander Kelser. Carriers in Infectious Diseases: A Manual on the Importance, Pathology, Diagnosis and Treatment of Human Carriers. Baltimore: Williams & Wilkins company, 1922.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Nichols, Henry James, و Raymond Alexander Kelser. Carriers in Infectious Diseases: A Manual on the Importance, Pathology, Diagnosis and Treatment of Human Carriers. Williams & Wilkins company, 1922.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.