| APA | Smart Define. (2011). special day thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/special_day/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "special day thesaurus" https://smartdefine.org/special_day/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2011, special day thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/special_day/thesaurus/synonyms>. |
| MLA | Smart Define. "special day thesaurus" 23 May 2011. Web. 20 September 2026. <https://smartdefine.org/special_day/thesaurus/synonyms> |