| APA | Smart Define. (2011). great lengths thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/great_lengths/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "great lengths thesaurus" https://smartdefine.org/great_lengths/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2011, great lengths thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/great_lengths/thesaurus/synonyms>. |
| MLA | Smart Define. "great lengths thesaurus" 21 May 2011. Web. 22 September 2026. <https://smartdefine.org/great_lengths/thesaurus/synonyms> |