| APA | Smart Define. (-0001). European solar thermal industry federation thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/european_solar_thermal_industry_federation/thesaurus/broader |
| Chicago | Smart Define. -0001. "European solar thermal industry federation thesaurus" https://smartdefine.org/european_solar_thermal_industry_federation/thesaurus/broader (accessed September 25, 2026). |
| Harvard | Smart Define -0001, European solar thermal industry federation thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/european_solar_thermal_industry_federation/thesaurus/broader>. |
| MLA | Smart Define. "European solar thermal industry federation thesaurus" 30 November -0001. Web. 25 September 2026. <https://smartdefine.org/european_solar_thermal_industry_federation/thesaurus/broader> |