Friis Johansen, K. (1998). A history of ancient philosophy: From the beginnings to Augustine. Routledge.
Chicago-čujuhus (17. p.)Friis Johansen, K. A History of Ancient Philosophy: From the Beginnings to Augustine. London ; New York: Routledge, 1998.
MLA-čujuhus (9. p.)Friis Johansen, K. A History of Ancient Philosophy: From the Beginnings to Augustine. Routledge, 1998.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.