Cita APA (7a ed.)

Cornford, F., & Guthrie, W. (1950). The unwritten philosophy and other essays. University Press.

Cita Chicago Style (17a ed.)

Cornford, F.M, y W.K.C Guthrie. The Unwritten Philosophy and Other Essays. Cambridge: University Press, 1950.

Cita MLA (8a ed.)

Cornford, F.M, y W.K.C Guthrie. The Unwritten Philosophy and Other Essays. University Press, 1950.