(p.pr.&vb.n.) of Crumb.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). crumbing. Retrieved September 20, 2026, from http://smartdefine.org/crumbing/definitions/1993347 |
| Chicago | Webster's. 2011. "crumbing" http://smartdefine.org/crumbing/definitions/1993347 (accessed September 20, 2026). |
| Harvard | Webster's 2011, crumbing, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/crumbing/definitions/1993347>. |
| MLA | Webster's. "crumbing" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/crumbing/definitions/1993347> |