| APA | Smart Define. (-0001). international standards thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/international_standards/thesaurus/narrower |
| Chicago | Smart Define. -0001. "international standards thesaurus" https://smartdefine.org/international_standards/thesaurus/narrower (accessed September 21, 2026). |
| Harvard | Smart Define -0001, international standards thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/international_standards/thesaurus/narrower>. |
| MLA | Smart Define. "international standards thesaurus" 30 November -0001. Web. 21 September 2026. <https://smartdefine.org/international_standards/thesaurus/narrower> |