Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). prolonger. Retrieved September 21, 2026, from http://smartdefine.org/prolonger/definitions/2049742 |
| Chicago | Webster's. 2011. "prolonger" http://smartdefine.org/prolonger/definitions/2049742 (accessed September 21, 2026). |
| Harvard | Webster's 2011, prolonger, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/prolonger/definitions/2049742>. |
| MLA | Webster's. "prolonger" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/prolonger/definitions/2049742> |