| APA | Smart Define. (2013). invert soap thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/invert_soap/thesaurus/narrower |
| Chicago | Smart Define. 2013. "invert soap thesaurus" https://smartdefine.org/invert_soap/thesaurus/narrower (accessed September 22, 2026). |
| Harvard | Smart Define 2013, invert soap thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/invert_soap/thesaurus/narrower>. |
| MLA | Smart Define. "invert soap thesaurus" 18 May 2013. Web. 22 September 2026. <https://smartdefine.org/invert_soap/thesaurus/narrower> |