| APA | Smart Define. (2013). air taxis thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/air_taxis/thesaurus/broader |
| Chicago | Smart Define. 2013. "air taxis thesaurus" https://smartdefine.org/air_taxis/thesaurus/broader (accessed September 29, 2026). |
| Harvard | Smart Define 2013, air taxis thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/air_taxis/thesaurus/broader>. |
| MLA | Smart Define. "air taxis thesaurus" 13 June 2013. Web. 29 September 2026. <https://smartdefine.org/air_taxis/thesaurus/broader> |