Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). rud. Retrieved September 29, 2026, from http://smartdefine.org/rud/definitions/2056906 |
| Chicago | Webster's. 2011. "rud" http://smartdefine.org/rud/definitions/2056906 (accessed September 29, 2026). |
| Harvard | Webster's 2011, rud, Smart Define, viewed 29 September, 2026, <http://smartdefine.org/rud/definitions/2056906>. |
| MLA | Webster's. "rud" 28 May 2011. Web. 29 September 2026. <http://smartdefine.org/rud/definitions/2056906> |