| APA | Smart Define. (2011). be certain of thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/be_certain_of/thesaurus/related |
| Chicago | Smart Define. 2011. "be certain of thesaurus" https://smartdefine.org/be_certain_of/thesaurus/related (accessed September 22, 2026). |
| Harvard | Smart Define 2011, be certain of thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/be_certain_of/thesaurus/related>. |
| MLA | Smart Define. "be certain of thesaurus" 29 May 2011. Web. 22 September 2026. <https://smartdefine.org/be_certain_of/thesaurus/related> |