Cornford, F. M., & Guthrie, W. K. C. (1950). The Unwritten Philosophy and Other Essays. Cambridge University Press.
Cita Chicago (17th ed.)Cornford, F. M., i W. K. C. Guthrie. The Unwritten Philosophy and Other Essays. Cambridge: Cambridge University Press, 1950.
Cita MLA (9th ed.)Cornford, F. M., i W. K. C. Guthrie. The Unwritten Philosophy and Other Essays. Cambridge University Press, 1950.
Atenció: Aquestes cites poden no estar 100% correctes.