| APA | Smart Define. (2011). air traffic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/air_traffic/thesaurus/broader |
| Chicago | Smart Define. 2011. "air traffic thesaurus" https://smartdefine.org/air_traffic/thesaurus/broader (accessed September 23, 2026). |
| Harvard | Smart Define 2011, air traffic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/air_traffic/thesaurus/broader>. |
| MLA | Smart Define. "air traffic thesaurus" 26 April 2011. Web. 23 September 2026. <https://smartdefine.org/air_traffic/thesaurus/broader> |