| APA | Smart Define. (2011). bought for a song thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/bought_for_a_song/thesaurus/antonyms |
| Chicago | Smart Define. 2011. "bought for a song thesaurus" https://smartdefine.org/bought_for_a_song/thesaurus/antonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2011, bought for a song thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/bought_for_a_song/thesaurus/antonyms>. |
| MLA | Smart Define. "bought for a song thesaurus" 23 May 2011. Web. 30 September 2026. <https://smartdefine.org/bought_for_a_song/thesaurus/antonyms> |