| APA | Smart Define. (2015). Washtub thesaurus. Retrieved October 2, 2026, from https://smartdefine.org/washtub/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "Washtub thesaurus" https://smartdefine.org/washtub/thesaurus/synonyms (accessed October 2, 2026). |
| Harvard | Smart Define 2015, Washtub thesaurus, Smart Define, viewed 2 October, 2026, <https://smartdefine.org/washtub/thesaurus/synonyms>. |
| MLA | Smart Define. "Washtub thesaurus" 10 April 2015. Web. 2 October 2026. <https://smartdefine.org/washtub/thesaurus/synonyms> |