| APA | Smart Define. (2013). duct face thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/duct_face/thesaurus/related |
| Chicago | Smart Define. 2013. "duct face thesaurus" https://smartdefine.org/duct_face/thesaurus/related (accessed September 24, 2026). |
| Harvard | Smart Define 2013, duct face thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/duct_face/thesaurus/related>. |
| MLA | Smart Define. "duct face thesaurus" 18 May 2013. Web. 24 September 2026. <https://smartdefine.org/duct_face/thesaurus/related> |