توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Wangdahl, A. (1980). Who are the correspondence students and what about their handicap of isolation. Dept. of Education, University of Lund.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Wangdahl, Agneta. Who Are the Correspondence Students and What About Their Handicap of Isolation. Lund, Sweden: Dept. of Education, University of Lund, 1980.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Wangdahl, Agneta. Who Are the Correspondence Students and What About Their Handicap of Isolation. Dept. of Education, University of Lund, 1980.