| APA | Smart Define. (1970). active solar energy collector thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/active_solar_energy_collector/thesaurus/broader |
| Chicago | Smart Define. 1970. "active solar energy collector thesaurus" https://smartdefine.org/active_solar_energy_collector/thesaurus/broader (accessed September 23, 2026). |
| Harvard | Smart Define 1970, active solar energy collector thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/active_solar_energy_collector/thesaurus/broader>. |
| MLA | Smart Define. "active solar energy collector thesaurus" 1 January 1970. Web. 23 September 2026. <https://smartdefine.org/active_solar_energy_collector/thesaurus/broader> |