توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Langner, M., & Endlicher, W. (2014). Shrinking cities: Effects on urban ecology and challenges for urban development (Second, revised edition.). Peter Lang Edition.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Langner, Marcel, و Wilfried Endlicher. Shrinking Cities: Effects on Urban Ecology and Challenges for Urban Development. Second, revised edition. Frankfurt, Germany: Peter Lang Edition, 2014.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Langner, Marcel, و Wilfried Endlicher. Shrinking Cities: Effects on Urban Ecology and Challenges for Urban Development. Second, revised edition. Peter Lang Edition, 2014.