| APA | Smart Define. (2011). four-petalled thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/four-petalled/thesaurus/related |
| Chicago | Smart Define. 2011. "four-petalled thesaurus" https://smartdefine.org/four-petalled/thesaurus/related (accessed September 28, 2026). |
| Harvard | Smart Define 2011, four-petalled thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/four-petalled/thesaurus/related>. |
| MLA | Smart Define. "four-petalled thesaurus" 26 April 2011. Web. 28 September 2026. <https://smartdefine.org/four-petalled/thesaurus/related> |