| APA | EHCN. (2012, February 15). In Acronym Geek. Retrieved 18:16, February 15, 2012, from http://www.acronymgeek.com/EHCN |
| MLA | "EHCN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EHCN>. |
| MHRA | 'EHCN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EHCN> [accessed 15 February 2012] |
| Chicago | "EHCN", http://www.acronymgeek.com/EHCN (accessed February 15, 2012). |
| CBE/CSE | EHCN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EHCN. |
| Bluebook | EHCN, http://www.acronymgeek.com/EHCN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHCN, http://www.acronymgeek.com/EHCN (optional description here) (as of Feb. 15, 2012, 18:16). |
| AMA | EHCN. Acronym Geek. February 15, 2012, 18:16. Available at: http://www.acronymgeek.com/EHCN. Accessed February 15, 2012, 18:16. |