University of North Dakota, University of North Dakota. College of Education, & University of North Dakota. Bureau of Educational and Psychological Research and Services. (1955). The College of Education record. College of Education, University of North Dakota.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)University of North Dakota, University of North Dakota. College of Education, و University of North Dakota. Bureau of Educational and Psychological Research and Services. The College of Education Record. Grand Forks, N.D.: College of Education, University of North Dakota, 1955.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)University of North Dakota, et al. The College of Education Record. College of Education, University of North Dakota, 1955.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.