Cita APA (7a ed.)

Hoffding, H. (1922). Ethik. O.R.Reisland.

Cita Chicago Style (17a ed.)

Hoffding, Harald. Ethik. Leipzig: O.R.Reisland, 1922.

Cita MLA (8a ed.)

Hoffding, Harald. Ethik. O.R.Reisland, 1922.