| APA | EHCH. (2012, February 15). In Acronym Geek. Retrieved 19:07, February 15, 2012, from http://www.acronymgeek.com/EHCH |
| MLA | "EHCH." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EHCH>. |
| MHRA | 'EHCH', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EHCH> [accessed 15 February 2012] |
| Chicago | "EHCH", http://www.acronymgeek.com/EHCH (accessed February 15, 2012). |
| CBE/CSE | EHCH [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EHCH. |
| Bluebook | EHCH, http://www.acronymgeek.com/EHCH (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHCH, http://www.acronymgeek.com/EHCH (optional description here) (as of Feb. 15, 2012, 19:07). |
| AMA | EHCH. Acronym Geek. February 15, 2012, 19:07. Available at: http://www.acronymgeek.com/EHCH. Accessed February 15, 2012, 19:07. |