| APA | Smart Define. (2013). History of the toilet thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/history_of_the_toilet/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "History of the toilet thesaurus" https://smartdefine.org/history_of_the_toilet/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2013, History of the toilet thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/history_of_the_toilet/thesaurus/synonyms>. |
| MLA | Smart Define. "History of the toilet thesaurus" 18 May 2013. Web. 25 September 2026. <https://smartdefine.org/history_of_the_toilet/thesaurus/synonyms> |