APA (7th ed.) Citation

Porphyry, a. 2. 3., & Barker, A. (2015). Porphyry's commentary on Ptolemy's Harmonics: A Greek text and annotated translation. Cambridge University Press.

Chicago Style (17th ed.) Citation

Porphyry, approximately 234-approximately 305, and Andrew Barker. Porphyry's Commentary on Ptolemy's Harmonics: A Greek Text and Annotated Translation. Cambridge ; New York: Cambridge University Press, 2015.

MLA (9th ed.) Citation

Porphyry, approximately 234-approximately 305, and Andrew Barker. Porphyry's Commentary on Ptolemy's Harmonics: A Greek Text and Annotated Translation. Cambridge University Press, 2015.