| APA | Smart Define. (2015). one-of-a-kind thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/one-of-a-kind/thesaurus/narrower |
| Chicago | Smart Define. 2015. "one-of-a-kind thesaurus" https://smartdefine.org/one-of-a-kind/thesaurus/narrower (accessed October 2, 2026). |
| Harvard | Smart Define 2015, one-of-a-kind thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/one-of-a-kind/thesaurus/narrower>. |
| MLA | Smart Define. "one-of-a-kind thesaurus" 14 May 2015. Web. 2 October 2026. <https://smartdefine.org/one-of-a-kind/thesaurus/narrower> |