توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Booth, A., & Crouter, A. C. (2005). The new population problem: Why families in developed countries are shrinking and what it means. Lawrence Erlbaum Asociates.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Booth, Alan, و Ann C. Crouter. The New Population Problem: Why Families in Developed Countries Are Shrinking and What It Means. Mahwah, N.J.: Lawrence Erlbaum Asociates, 2005.

توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)

Booth, Alan, و Ann C. Crouter. The New Population Problem: Why Families in Developed Countries Are Shrinking and What It Means. Lawrence Erlbaum Asociates, 2005.