توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Leppert, S. (2009). The Horizontal on the Vertical: Carl Alexander Park in Baesweiler near the German city of Aachen will be an engine for urban design development. Topos.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Leppert, Stefan. "The Horizontal on the Vertical: Carl Alexander Park in Baesweiler Near the German City of Aachen Will Be an Engine for Urban Design Development." Topos 2009.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Leppert, Stefan. "The Horizontal on the Vertical: Carl Alexander Park in Baesweiler Near the German City of Aachen Will Be an Engine for Urban Design Development." Topos, 2009.