Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). indices. Retrieved September 22, 2026, from http://smartdefine.org/indices/definitions/2020817 |
| Chicago | Webster's. 2011. "indices" http://smartdefine.org/indices/definitions/2020817 (accessed September 22, 2026). |
| Harvard | Webster's 2011, indices, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/indices/definitions/2020817>. |
| MLA | Webster's. "indices" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/indices/definitions/2020817> |