| APA | ECXA. (2012, February 16). In Acronym Geek. Retrieved 22:46, February 16, 2012, from http://www.acronymgeek.com/ECXA |
| MLA | "ECXA." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/ECXA>. |
| MHRA | 'ECXA', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/ECXA> [accessed 16 February 2012] |
| Chicago | "ECXA", http://www.acronymgeek.com/ECXA (accessed February 16, 2012). |
| CBE/CSE | ECXA [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/ECXA. |
| Bluebook | ECXA, http://www.acronymgeek.com/ECXA (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECXA, http://www.acronymgeek.com/ECXA (optional description here) (as of Feb. 16, 2012, 22:46). |
| AMA | ECXA. Acronym Geek. February 16, 2012, 22:46. Available at: http://www.acronymgeek.com/ECXA. Accessed February 16, 2012, 22:46. |