Cita APA (7a ed.)

Mill, J. S., Robson, J. M., & Sparshott, F. E. (1978). Essays on philosophy and the classics. University Press [etc.].

Cita Chicago Style (17a ed.)

Mill, John Stuart, John M. Robson, y F. E. Sparshott. Essays on Philosophy and the Classics. Toronto [etc.]: University Press [etc.], 1978.

Cita MLA (9a ed.)

Mill, John Stuart, et al. Essays on Philosophy and the Classics. University Press [etc.], 1978.