| APA | Smart Define. (-0001). free exchange thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/free_exchange/thesaurus/narrower |
| Chicago | Smart Define. -0001. "free exchange thesaurus" https://smartdefine.org/free_exchange/thesaurus/narrower (accessed September 25, 2026). |
| Harvard | Smart Define -0001, free exchange thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/free_exchange/thesaurus/narrower>. |
| MLA | Smart Define. "free exchange thesaurus" 30 November -0001. Web. 25 September 2026. <https://smartdefine.org/free_exchange/thesaurus/narrower> |