| APA | Smart Define. (2013). gymnospermous tree thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/gymnospermous_tree/thesaurus/related |
| Chicago | Smart Define. 2013. "gymnospermous tree thesaurus" https://smartdefine.org/gymnospermous_tree/thesaurus/related (accessed September 29, 2026). |
| Harvard | Smart Define 2013, gymnospermous tree thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/gymnospermous_tree/thesaurus/related>. |
| MLA | Smart Define. "gymnospermous tree thesaurus" 18 May 2013. Web. 29 September 2026. <https://smartdefine.org/gymnospermous_tree/thesaurus/related> |