| APA | Smart Define. (2014). Propaedeutical thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/propaedeutical/thesaurus/synonyms |
| Chicago | Smart Define. 2014. "Propaedeutical thesaurus" https://smartdefine.org/propaedeutical/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2014, Propaedeutical thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/propaedeutical/thesaurus/synonyms>. |
| MLA | Smart Define. "Propaedeutical thesaurus" 23 April 2014. Web. 22 September 2026. <https://smartdefine.org/propaedeutical/thesaurus/synonyms> |