| APA | Smart Define. (1970). a trifling sum thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/a_trifling_sum/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "a trifling sum thesaurus" https://smartdefine.org/a_trifling_sum/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 1970, a trifling sum thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/a_trifling_sum/thesaurus/synonyms>. |
| MLA | Smart Define. "a trifling sum thesaurus" 1 January 1970. Web. 20 September 2026. <https://smartdefine.org/a_trifling_sum/thesaurus/synonyms> |