| APA | Smart Define. (-0001). international union of air pollution prevention associations thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/international_union_of_air_pollution_prevention_associations/thesaurus/broader |
| Chicago | Smart Define. -0001. "international union of air pollution prevention associations thesaurus" https://smartdefine.org/international_union_of_air_pollution_prevention_associations/thesaurus/broader (accessed October 1, 2026). |
| Harvard | Smart Define -0001, international union of air pollution prevention associations thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/international_union_of_air_pollution_prevention_associations/thesaurus/broader>. |
| MLA | Smart Define. "international union of air pollution prevention associations thesaurus" 30 November -0001. Web. 1 October 2026. <https://smartdefine.org/international_union_of_air_pollution_prevention_associations/thesaurus/broader> |