| APA | EHVN. (2012, February 15). In Acronym Geek. Retrieved 17:48, February 15, 2012, from http://www.acronymgeek.com/EHVN |
| MLA | "EHVN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EHVN>. |
| MHRA | 'EHVN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EHVN> [accessed 15 February 2012] |
| Chicago | "EHVN", http://www.acronymgeek.com/EHVN (accessed February 15, 2012). |
| CBE/CSE | EHVN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EHVN. |
| Bluebook | EHVN, http://www.acronymgeek.com/EHVN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHVN, http://www.acronymgeek.com/EHVN (optional description here) (as of Feb. 15, 2012, 17:48). |
| AMA | EHVN. Acronym Geek. February 15, 2012, 17:48. Available at: http://www.acronymgeek.com/EHVN. Accessed February 15, 2012, 17:48. |