توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

American Association of Teachers of German & Bagster-Collins, E. W. The German quarterly. [American Association of Teachers of German].

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

American Association of Teachers of German و E. W. Bagster-Collins. The German Quarterly. [Philadelphia, etc.]: [American Association of Teachers of German].

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

American Association of Teachers of German و E. W. Bagster-Collins. The German Quarterly. [American Association of Teachers of German].