Chatzky, J. S., Roizen, M. F., & Spiker, T. (2017). Ageproof: How to live longer without breaking a hip, running out of money, or forgetting where you put it--the 8 secrets (First edition.). Grand Central Life & Style.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Chatzky, Jean Sherman, Michael F. Roizen, و Ted Spiker. Ageproof: How to Live Longer Without Breaking a Hip, Running Out of Money, or Forgetting Where You Put It--the 8 Secrets. First edition. New York: Grand Central Life & Style, 2017.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Chatzky, Jean Sherman, et al. Ageproof: How to Live Longer Without Breaking a Hip, Running Out of Money, or Forgetting Where You Put It--the 8 Secrets. First edition. Grand Central Life & Style, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.