Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). impeachable. Retrieved September 20, 2026, from http://smartdefine.org/impeachable/definitions/2019442 |
| Chicago | Webster's. 2011. "impeachable" http://smartdefine.org/impeachable/definitions/2019442 (accessed September 20, 2026). |
| Harvard | Webster's 2011, impeachable, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/impeachable/definitions/2019442>. |
| MLA | Webster's. "impeachable" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/impeachable/definitions/2019442> |