The later letters of John Stuart Mill 1849-1873 / edited by Francis E. Mineka and Dwight N. Lindley. - Mill, John Stuart, 1806-1873. (OLS)http://pul/name/15219; Mineka, Francis E. (OLS)http://pul/name/103121; Lindley, Dwight N. (OLS)http://pul/name/103407 (Routledge, 1972)
Bibliografia in nota.