| APA | Smart Define. (2013). thomas henry huxley and agnosticism thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/thomas_henry_huxley_and_agnosticism/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "thomas henry huxley and agnosticism thesaurus" https://smartdefine.org/thomas_henry_huxley_and_agnosticism/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2013, thomas henry huxley and agnosticism thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/thomas_henry_huxley_and_agnosticism/thesaurus/synonyms>. |
| MLA | Smart Define. "thomas henry huxley and agnosticism thesaurus" 17 May 2013. Web. 30 September 2026. <https://smartdefine.org/thomas_henry_huxley_and_agnosticism/thesaurus/synonyms> |