| APA | Smart Define. (2013). iron-grey thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/iron-grey/thesaurus/broader |
| Chicago | Smart Define. 2013. "iron-grey thesaurus" https://smartdefine.org/iron-grey/thesaurus/broader (accessed September 26, 2026). |
| Harvard | Smart Define 2013, iron-grey thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/iron-grey/thesaurus/broader>. |
| MLA | Smart Define. "iron-grey thesaurus" 28 June 2013. Web. 26 September 2026. <https://smartdefine.org/iron-grey/thesaurus/broader> |