| APA | XKU. (2012, February 14). In Acronym Geek. Retrieved 11:12, February 14, 2012, from http://www.acronymgeek.com/XKU |
| MLA | "XKU." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/XKU>. |
| MHRA | 'XKU', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/XKU> [accessed 14 February 2012] |
| Chicago | "XKU", http://www.acronymgeek.com/XKU (accessed February 14, 2012). |
| CBE/CSE | XKU [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/XKU. |
| Bluebook | XKU, http://www.acronymgeek.com/XKU (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XKU, http://www.acronymgeek.com/XKU (optional description here) (as of Feb. 14, 2012, 11:12). |
| AMA | XKU. Acronym Geek. February 14, 2012, 11:12. Available at: http://www.acronymgeek.com/XKU. Accessed February 14, 2012, 11:12. |