| APA | Smart Define. (2016). pitch-black thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/pitch-black/thesaurus/broader |
| Chicago | Smart Define. 2016. "pitch-black thesaurus" https://smartdefine.org/pitch-black/thesaurus/broader (accessed September 28, 2026). |
| Harvard | Smart Define 2016, pitch-black thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/pitch-black/thesaurus/broader>. |
| MLA | Smart Define. "pitch-black thesaurus" 29 February 2016. Web. 28 September 2026. <https://smartdefine.org/pitch-black/thesaurus/broader> |