Chicago: Aristotle, "Book I," Physics, trans. R. P. Hardie and R. K. Gaye Original Sources, accessed May 20, 2025, http://originalsources.com/Document.aspx?DocID=ZIYXLCD6QV4CNEB.
MLA: Aristotle. "Book I." Physics, translted by R. P. Hardie and R. K. Gaye, Original Sources. 20 May. 2025. http://originalsources.com/Document.aspx?DocID=ZIYXLCD6QV4CNEB.
Harvard: Aristotle, 'Book I' in Physics, trans. . Original Sources, retrieved 20 May 2025, from http://originalsources.com/Document.aspx?DocID=ZIYXLCD6QV4CNEB.