| APA | Smart Define. (2011). toxic waste site thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/toxic_waste_site/thesaurus/broader |
| Chicago | Smart Define. 2011. "toxic waste site thesaurus" https://smartdefine.org/toxic_waste_site/thesaurus/broader (accessed September 29, 2026). |
| Harvard | Smart Define 2011, toxic waste site thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/toxic_waste_site/thesaurus/broader>. |
| MLA | Smart Define. "toxic waste site thesaurus" 23 May 2011. Web. 29 September 2026. <https://smartdefine.org/toxic_waste_site/thesaurus/broader> |