| APA | Smart Define. (1970). dull as ditch-water thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/dull_as_ditch-water/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "dull as ditch-water thesaurus" https://smartdefine.org/dull_as_ditch-water/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 1970, dull as ditch-water thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/dull_as_ditch-water/thesaurus/synonyms>. |
| MLA | Smart Define. "dull as ditch-water thesaurus" 1 January 1970. Web. 27 September 2026. <https://smartdefine.org/dull_as_ditch-water/thesaurus/synonyms> |