Cita APA (7a ed.)

Mill, J. S., Robson, J. M., Laine, M., & Filipiuk, M. (1991). Additional Letters: Volume XXXII. Routledge.

Cita Chicago Style (17a ed.)

Mill, John Stuart, John M. Robson, Michael Laine, y Marion Filipiuk. Additional Letters: Volume XXXII. London [England]: Routledge, 1991.

Cita MLA (8a ed.)

Mill, John Stuart, et al. Additional Letters: Volume XXXII. Routledge, 1991.