| APA | IEHN. (2012, February 15). In Acronym Geek. Retrieved 10:35, February 15, 2012, from http://www.acronymgeek.com/IEHN |
| MLA | "IEHN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/IEHN>. |
| MHRA | 'IEHN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/IEHN> [accessed 15 February 2012] |
| Chicago | "IEHN", http://www.acronymgeek.com/IEHN (accessed February 15, 2012). |
| CBE/CSE | IEHN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/IEHN. |
| Bluebook | IEHN, http://www.acronymgeek.com/IEHN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, IEHN, http://www.acronymgeek.com/IEHN (optional description here) (as of Feb. 15, 2012, 10:35). |
| AMA | IEHN. Acronym Geek. February 15, 2012, 10:35. Available at: http://www.acronymgeek.com/IEHN. Accessed February 15, 2012, 10:35. |