Cita APA (7th ed.)

Friis Johansen, K. (1991). A History of ancient philosophy: From the beginnings to. Routledge.

Cita Chicago (17th ed.)

Friis Johansen, Karsten. A History of Ancient Philosophy: From the Beginnings to. London: Routledge, 1991.

Cita MLA (9th ed.)

Friis Johansen, Karsten. A History of Ancient Philosophy: From the Beginnings to. Routledge, 1991.