Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). historian. Retrieved September 23, 2026, from http://smartdefine.org/historian/definitions/2016761 |
| Chicago | Webster's. 2011. "historian" http://smartdefine.org/historian/definitions/2016761 (accessed September 23, 2026). |
| Harvard | Webster's 2011, historian, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/historian/definitions/2016761>. |
| MLA | Webster's. "historian" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/historian/definitions/2016761> |