APA (7th ed.) Citation

Huxley, T. H., & Huxley, L. (2004). Life and Letters of Thomas Henry Huxley - Volume 2. Project Gutenberg.

Chicago Style (17th ed.) Citation

Huxley, Thomas Henry, and Leonard Huxley. Life and Letters of Thomas Henry Huxley - Volume 2. Project Gutenberg, 2004.

MLA (9th ed.) Citation

Huxley, Thomas Henry, and Leonard Huxley. Life and Letters of Thomas Henry Huxley - Volume 2. Project Gutenberg, 2004.

Warning: These citations may not always be 100% accurate.