Kirk, G. S., Raven, J. E., & Schofield, M. (1957). The presocratic philosophers: A critical history with a selection of texts. Cambridge University.
Citace podle Chicago (17th ed.)Kirk, Geoffrey Stephen, J. E. Raven, a Malcolm Schofield. The Presocratic Philosophers: A Critical History with a Selection of Texts. Cambridge: Cambridge University, 1957.
Citace podle MLA (9th ed.)Kirk, Geoffrey Stephen, et al. The Presocratic Philosophers: A Critical History with a Selection of Texts. Cambridge University, 1957.
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