Barker, A. (2007). The science of harmonics in classical Greece. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Barker, Andrew. The Science of Harmonics in Classical Greece. Cambridge ; New York: Cambridge University Press, 2007.
Lua MLA (9ú heag.)Barker, Andrew. The Science of Harmonics in Classical Greece. Cambridge University Press, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.