| APA | XMK. (2012, February 15). In Acronym Geek. Retrieved 03:49, February 15, 2012, from http://www.acronymgeek.com/XMK |
| MLA | "XMK." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/XMK>. |
| MHRA | 'XMK', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/XMK> [accessed 15 February 2012] |
| Chicago | "XMK", http://www.acronymgeek.com/XMK (accessed February 15, 2012). |
| CBE/CSE | XMK [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/XMK. |
| Bluebook | XMK, http://www.acronymgeek.com/XMK (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XMK, http://www.acronymgeek.com/XMK (optional description here) (as of Feb. 15, 2012, 03:49). |
| AMA | XMK. Acronym Geek. February 15, 2012, 03:49. Available at: http://www.acronymgeek.com/XMK. Accessed February 15, 2012, 03:49. |