| APA | Smart Define. (2011). world of nature thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/world_of_nature/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "world of nature thesaurus" https://smartdefine.org/world_of_nature/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2011, world of nature thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/world_of_nature/thesaurus/synonyms>. |
| MLA | Smart Define. "world of nature thesaurus" 23 May 2011. Web. 21 September 2026. <https://smartdefine.org/world_of_nature/thesaurus/synonyms> |