توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Card, D., & Lemiuex, T. (2000). Dropout and enrollment trends in the post-war period: What went wrong int he 1970sn. National Bureau of Economic Research.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Card, David, و Thomas Lemiuex. Dropout and Enrollment Trends in the Post-war Period: What Went Wrong Int He 1970sn. Cambridge: National Bureau of Economic Research, 2000.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Card, David, و Thomas Lemiuex. Dropout and Enrollment Trends in the Post-war Period: What Went Wrong Int He 1970sn. National Bureau of Economic Research, 2000.