| APA | Smart Define. (1970). as black as pitch thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/as_black_as_pitch/thesaurus/synonyms |
| Chicago | Smart Define. 1970. "as black as pitch thesaurus" https://smartdefine.org/as_black_as_pitch/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 1970, as black as pitch thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/as_black_as_pitch/thesaurus/synonyms>. |
| MLA | Smart Define. "as black as pitch thesaurus" 1 January 1970. Web. 22 September 2026. <https://smartdefine.org/as_black_as_pitch/thesaurus/synonyms> |