Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). sank. Retrieved September 20, 2026, from http://smartdefine.org/sank/definitions/2057848 |
| Chicago | Webster's. 2011. "sank" http://smartdefine.org/sank/definitions/2057848 (accessed September 20, 2026). |
| Harvard | Webster's 2011, sank, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/sank/definitions/2057848>. |
| MLA | Webster's. "sank" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/sank/definitions/2057848> |