| APA | Smart Define. (2013). hazardous materials transportation thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/hazardous_materials_transportation/thesaurus/broader |
| Chicago | Smart Define. 2013. "hazardous materials transportation thesaurus" https://smartdefine.org/hazardous_materials_transportation/thesaurus/broader (accessed September 28, 2026). |
| Harvard | Smart Define 2013, hazardous materials transportation thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hazardous_materials_transportation/thesaurus/broader>. |
| MLA | Smart Define. "hazardous materials transportation thesaurus" 13 June 2013. Web. 28 September 2026. <https://smartdefine.org/hazardous_materials_transportation/thesaurus/broader> |