Cita APA (7th ed.)

Barnes, J. (2000). The Presocrafic philosophers. Routledge.

Cita Chicago (17th ed.)

Barnes, Jonathan. The Presocrafic Philosophers. London: Routledge, 2000.

Cita MLA (9th ed.)

Barnes, Jonathan. The Presocrafic Philosophers. Routledge, 2000.