| APA | EXK. (2012, February 14). In Acronym Geek. Retrieved 08:01, February 14, 2012, from http://www.acronymgeek.com/EXK |
| MLA | "EXK." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EXK>. |
| MHRA | 'EXK', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EXK> [accessed 14 February 2012] |
| Chicago | "EXK", http://www.acronymgeek.com/EXK (accessed February 14, 2012). |
| CBE/CSE | EXK [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EXK. |
| Bluebook | EXK, http://www.acronymgeek.com/EXK (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EXK, http://www.acronymgeek.com/EXK (optional description here) (as of Feb. 14, 2012, 08:01). |
| AMA | EXK. Acronym Geek. February 14, 2012, 08:01. Available at: http://www.acronymgeek.com/EXK. Accessed February 14, 2012, 08:01. |