| APA | Smart Define. (2016). well I'm sure thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/well_i%27m_sure/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "well I'm sure thesaurus" https://smartdefine.org/well_i%27m_sure/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, well I'm sure thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/well_i%27m_sure/thesaurus/synonyms>. |
| MLA | Smart Define. "well I'm sure thesaurus" 3 March 2016. Web. 21 September 2026. <https://smartdefine.org/well_i%27m_sure/thesaurus/synonyms> |