| APA | Smart Define. (2013). photometric brightness thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/photometric_brightness/thesaurus/related |
| Chicago | Smart Define. 2013. "photometric brightness thesaurus" https://smartdefine.org/photometric_brightness/thesaurus/related (accessed September 30, 2026). |
| Harvard | Smart Define 2013, photometric brightness thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/photometric_brightness/thesaurus/related>. |
| MLA | Smart Define. "photometric brightness thesaurus" 18 May 2013. Web. 30 September 2026. <https://smartdefine.org/photometric_brightness/thesaurus/related> |