Cita APA (7a ed.)

Huxley, L., & Huxley, T. H. (1900). Life and letters of Thomas Henry Huxley. Macmillan and Co.

Cita Chicago Style (17a ed.)

Huxley, Leonard, y Thomas Henry Huxley. Life and Letters of Thomas Henry Huxley. London: Macmillan and Co, 1900.

Cita MLA (9a ed.)

Huxley, Leonard, y Thomas Henry Huxley. Life and Letters of Thomas Henry Huxley. Macmillan and Co, 1900.