| APA | Smart Define. (2013). not for sale thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/not_for_sale/thesaurus/antonyms |
| Chicago | Smart Define. 2013. "not for sale thesaurus" https://smartdefine.org/not_for_sale/thesaurus/antonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2013, not for sale thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/not_for_sale/thesaurus/antonyms>. |
| MLA | Smart Define. "not for sale thesaurus" 19 May 2013. Web. 1 October 2026. <https://smartdefine.org/not_for_sale/thesaurus/antonyms> |