توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

(2000). Percentage of 25- to 29-year-old High School Completers with Some College. U.S. Department of Education.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Percentage of 25- to 29-year-old High School Completers with Some College. U.S. Department of Education, 2000.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Percentage of 25- to 29-year-old High School Completers with Some College. U.S. Department of Education, 2000.