Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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