| APA | Smart Define. (2015). co-occurrence thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/co-occurrence/thesaurus/narrower |
| Chicago | Smart Define. 2015. "co-occurrence thesaurus" https://smartdefine.org/co-occurrence/thesaurus/narrower (accessed September 22, 2026). |
| Harvard | Smart Define 2015, co-occurrence thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/co-occurrence/thesaurus/narrower>. |
| MLA | Smart Define. "co-occurrence thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/co-occurrence/thesaurus/narrower> |