Freeman, K. (1948). Ancilla to the Pre-Socratic Philosophers: By Kathleen Freeman (1st publ.). Blackwell.
Lua i Stíl Chicago (17ú heag.)Freeman, Kathleen. Ancilla to the Pre-Socratic Philosophers: By Kathleen Freeman. 1st publ. Oxford: Blackwell, 1948.
Lua MLA (8ú heag.)Freeman, Kathleen. Ancilla to the Pre-Socratic Philosophers: By Kathleen Freeman. 1st publ. Blackwell, 1948.
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