| APA | Smart Define. (1970). World Health Organization essential medicine thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/world_health_organization_essential_medicine/thesaurus/broader |
| Chicago | Smart Define. 1970. "World Health Organization essential medicine thesaurus" https://smartdefine.org/world_health_organization_essential_medicine/thesaurus/broader (accessed September 28, 2026). |
| Harvard | Smart Define 1970, World Health Organization essential medicine thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/world_health_organization_essential_medicine/thesaurus/broader>. |
| MLA | Smart Define. "World Health Organization essential medicine thesaurus" 1 January 1970. Web. 28 September 2026. <https://smartdefine.org/world_health_organization_essential_medicine/thesaurus/broader> |