| APA | XLK. (2012, February 13). In Acronym Geek. Retrieved 23:52, February 13, 2012, from http://www.acronymgeek.com/XLK |
| MLA | "XLK." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/XLK>. |
| MHRA | 'XLK', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/XLK> [accessed 13 February 2012] |
| Chicago | "XLK", http://www.acronymgeek.com/XLK (accessed February 13, 2012). |
| CBE/CSE | XLK [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/XLK. |
| Bluebook | XLK, http://www.acronymgeek.com/XLK (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XLK, http://www.acronymgeek.com/XLK (optional description here) (as of Feb. 13, 2012, 23:52). |
| AMA | XLK. Acronym Geek. February 13, 2012, 23:52. Available at: http://www.acronymgeek.com/XLK. Accessed February 13, 2012, 23:52. |