| APA | Smart Define. (2015). railway locomotive thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/railway_locomotive/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "railway locomotive thesaurus" https://smartdefine.org/railway_locomotive/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2015, railway locomotive thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/railway_locomotive/thesaurus/synonyms>. |
| MLA | Smart Define. "railway locomotive thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/railway_locomotive/thesaurus/synonyms> |