Committee on the Grading of Nursing Schools, Burgess, M. A., & Darrach, W. (1930). Results of the first grading study of nursing schools.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Committee on the Grading of Nursing Schools, May Ayres Burgess, و William Darrach. Results of the First Grading Study of Nursing Schools. New York, 1930.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Committee on the Grading of Nursing Schools, et al. Results of the First Grading Study of Nursing Schools. 1930.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.