Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). ratable. Retrieved September 21, 2026, from http://smartdefine.org/ratable/definitions/2052713 |
| Chicago | Webster's. 2011. "ratable" http://smartdefine.org/ratable/definitions/2052713 (accessed September 21, 2026). |
| Harvard | Webster's 2011, ratable, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/ratable/definitions/2052713>. |
| MLA | Webster's. "ratable" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/ratable/definitions/2052713> |