| APA | ECHS. (2012, February 15). In Acronym Geek. Retrieved 23:11, February 15, 2012, from http://www.acronymgeek.com/ECHS |
| MLA | "ECHS." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ECHS>. |
| MHRA | 'ECHS', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ECHS> [accessed 15 February 2012] |
| Chicago | "ECHS", http://www.acronymgeek.com/ECHS (accessed February 15, 2012). |
| CBE/CSE | ECHS [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ECHS. |
| Bluebook | ECHS, http://www.acronymgeek.com/ECHS (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ECHS, http://www.acronymgeek.com/ECHS (optional description here) (as of Feb. 15, 2012, 23:11). |
| AMA | ECHS. Acronym Geek. February 15, 2012, 23:11. Available at: http://www.acronymgeek.com/ECHS. Accessed February 15, 2012, 23:11. |