| APA | EX. (2012, February 9). In Acronym Geek. Retrieved 16:15, February 9, 2012, from http://www.acronymgeek.com/EX |
| MLA | "EX." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/EX>. |
| MHRA | 'EX', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/EX> [accessed 9 February 2012] |
| Chicago | "EX", http://www.acronymgeek.com/EX (accessed February 9, 2012). |
| CBE/CSE | EX [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/EX. |
| Bluebook | EX, http://www.acronymgeek.com/EX (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EX, http://www.acronymgeek.com/EX (optional description here) (as of Feb. 9, 2012, 16:15). |
| AMA | EX. Acronym Geek. February 9, 2012, 16:15. Available at: http://www.acronymgeek.com/EX. Accessed February 9, 2012, 16:15. |