(2000). Percentage Distribution According to Type Recently Read at School. U.S. Department of Education.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Percentage Distribution According to Type Recently Read at School. U.S. Department of Education, 2000.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Percentage Distribution According to Type Recently Read at School. U.S. Department of Education, 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.