Chicago: Aristotle, "Book I," Nicomachean Ethics, trans. W. D. Ross Original Sources, accessed April 19, 2024, http://www.originalsources.com/Document.aspx?DocID=2XEPV13RSINXQIA.
MLA: Aristotle. "Book I." Nicomachean Ethics, translted by W. D. Ross, Original Sources. 19 Apr. 2024. http://www.originalsources.com/Document.aspx?DocID=2XEPV13RSINXQIA.
Harvard: Aristotle, 'Book I' in Nicomachean Ethics, trans. . Original Sources, retrieved 19 April 2024, from http://www.originalsources.com/Document.aspx?DocID=2XEPV13RSINXQIA.