Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). hummer. Retrieved September 21, 2026, from http://smartdefine.org/hummer/definitions/2017759 |
| Chicago | Webster's. 2011. "hummer" http://smartdefine.org/hummer/definitions/2017759 (accessed September 21, 2026). |
| Harvard | Webster's 2011, hummer, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/hummer/definitions/2017759>. |
| MLA | Webster's. "hummer" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/hummer/definitions/2017759> |