Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). cupper. Retrieved September 21, 2026, from http://smartdefine.org/cupper/definitions/1993720 |
| Chicago | Webster's. 2011. "cupper" http://smartdefine.org/cupper/definitions/1993720 (accessed September 21, 2026). |
| Harvard | Webster's 2011, cupper, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/cupper/definitions/1993720>. |
| MLA | Webster's. "cupper" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/cupper/definitions/1993720> |