(n.) Chrysophanic acid.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). rhein. Retrieved September 25, 2026, from http://smartdefine.org/rhein/definitions/2055719 |
| Chicago | Webster's. 2011. "rhein" http://smartdefine.org/rhein/definitions/2055719 (accessed September 25, 2026). |
| Harvard | Webster's 2011, rhein, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/rhein/definitions/2055719>. |
| MLA | Webster's. "rhein" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/rhein/definitions/2055719> |