توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Fagan, J., Wigal, D., Cicero, M. T., & Deibel, F. (2009). The Cicero Project: A celebration of old age by common bonders : reflections on Cicero's "On a Life well spent" (De senectute) (First edition.). Argüeso Garzón Editores.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Fagan, Joseph, Donald Wigal, Marcus Tullius Cicero, و Frank Deibel. The Cicero Project: A Celebration of Old Age by Common Bonders : Reflections on Cicero's "On a Life Well Spent" (De Senectute). First edition. Bogatá: Argüeso Garzón Editores, 2009.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Fagan, Joseph, et al. The Cicero Project: A Celebration of Old Age by Common Bonders : Reflections on Cicero's "On a Life Well Spent" (De Senectute). First edition. Argüeso Garzón Editores, 2009.