توثيق جمعية علم النفس الأمريكية APA (الطبعة السابعة)

Frede, M., Long, A. A., & Sedley, D. (2011). A free will: Origins of the notion in ancient thought / by Michael Frede. Edited by A. A. Long. With a foreword by David Sedley. Univ. of California Press.

توثيق أسلوب شيكاغو (الطبعة السابعة عشر)

Frede, Michael, Anthony A. Long, و David Sedley. A Free Will: Origins of the Notion in Ancient Thought / by Michael Frede. Edited by A. A. Long. With a Foreword by David Sedley. Berkeley [u.a.]: Univ. of California Press, 2011.

توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)

Frede, Michael, et al. A Free Will: Origins of the Notion in Ancient Thought / by Michael Frede. Edited by A. A. Long. With a Foreword by David Sedley. Univ. of California Press, 2011.