APA (7th ed.) Citation

Huxley, T. H., & Huxley, H. A. (2011). Aphorisms and Reflections from the works of T. H. Huxley. Project Gutenberg.

Chicago Style (17th ed.) Citation

Huxley, Thomas Henry, and Henrietta A. Huxley. Aphorisms and Reflections from the Works of T. H. Huxley. Project Gutenberg, 2011.

MLA (9th ed.) Citation

Huxley, Thomas Henry, and Henrietta A. Huxley. Aphorisms and Reflections from the Works of T. H. Huxley. Project Gutenberg, 2011.

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