| APA | Smart Define. (1970). unzoned thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/unzoned/thesaurus/narrower |
| Chicago | Smart Define. 1970. "unzoned thesaurus" https://smartdefine.org/unzoned/thesaurus/narrower (accessed September 24, 2026). |
| Harvard | Smart Define 1970, unzoned thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/unzoned/thesaurus/narrower>. |
| MLA | Smart Define. "unzoned thesaurus" 1 January 1970. Web. 24 September 2026. <https://smartdefine.org/unzoned/thesaurus/narrower> |