| APA | Smart Define. (-0001). curschmann's spirals thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/curschmann%27s_spirals/thesaurus/related |
| Chicago | Smart Define. -0001. "curschmann's spirals thesaurus" https://smartdefine.org/curschmann%27s_spirals/thesaurus/related (accessed September 29, 2026). |
| Harvard | Smart Define -0001, curschmann's spirals thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/curschmann%27s_spirals/thesaurus/related>. |
| MLA | Smart Define. "curschmann's spirals thesaurus" 30 November -0001. Web. 29 September 2026. <https://smartdefine.org/curschmann%27s_spirals/thesaurus/related> |