Pyle, Andrew (). „Atoms and Atomism”. În Grafton, Anthony; Most, Glenn W.; Settis, Salvatore. The Classical Tradition. Cambridge, Massachusetts and London, England: The Belknap Press of Harvard University Press. pp. 103–104. ISBN978-0-674-03572-0.
Kenny, Anthony (). Ancient Philosophy. A New History of Western Philosophy. 1. Oxford, England: Oxford University Press. pp. 26–28. ISBN0-19-875273-3.