Cita APA (7a ed.)

Barnes, J. (1979). The Presocratic philosophers. Routledge & Kegan Paul.

Cita Chicago Style (17a ed.)

Barnes, Jonathan. The Presocratic Philosophers. London [etc.]: Routledge & Kegan Paul, 1979.

Cita MLA (9a ed.)

Barnes, Jonathan. The Presocratic Philosophers. Routledge & Kegan Paul, 1979.