APA-ийн эшлэл(7 дахь хэвлэлт)

Frede, M., & Long, A. A. (2011). A free will: Origins of the notion in ancient thought. University of California Press.

Чикаго-гийн эшлэл (17 дахь хэвлэлт)

Frede, Michael, ба A. A. Long. A Free Will: Origins of the Notion in Ancient Thought. Berkeley: University of California Press, 2011.

MLA -ийн эшлэл (9 дэх хэвлэлт)

Frede, Michael, ба A. A. Long. A Free Will: Origins of the Notion in Ancient Thought. University of California Press, 2011.