| APA | Smart Define. (2013). respiratory tract infection thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/respiratory_tract_infection/thesaurus/synonyms |
| Chicago | Smart Define. 2013. "respiratory tract infection thesaurus" https://smartdefine.org/respiratory_tract_infection/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2013, respiratory tract infection thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/respiratory_tract_infection/thesaurus/synonyms>. |
| MLA | Smart Define. "respiratory tract infection thesaurus" 18 May 2013. Web. 29 September 2026. <https://smartdefine.org/respiratory_tract_infection/thesaurus/synonyms> |