APA (7th ed.) Zitazioa

ebrary, Inc, & Waterfield, R. (2000). The first philosophers: The presocratics and sophists. Oxford University Press.

Chicago Style (17th ed.) Zitazioa

ebrary, Inc, eta Robin Waterfield. The First Philosophers: The Presocratics and Sophists. Oxford ; New York: Oxford University Press, 2000.

MLA (9th ed.) Zitazioa

ebrary, Inc, eta Robin Waterfield. The First Philosophers: The Presocratics and Sophists. Oxford University Press, 2000.