| APA | Smart Define. (2014). birthday party thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/birthday_party/thesaurus/antonyms |
| Chicago | Smart Define. 2014. "birthday party thesaurus" https://smartdefine.org/birthday_party/thesaurus/antonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2014, birthday party thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/birthday_party/thesaurus/antonyms>. |
| MLA | Smart Define. "birthday party thesaurus" 7 December 2014. Web. 30 September 2026. <https://smartdefine.org/birthday_party/thesaurus/antonyms> |