| APA | EHTN. (2012, February 16). In Acronym Geek. Retrieved 09:42, February 16, 2012, from http://www.acronymgeek.com/EHTN |
| MLA | "EHTN." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/EHTN>. |
| MHRA | 'EHTN', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/EHTN> [accessed 16 February 2012] |
| Chicago | "EHTN", http://www.acronymgeek.com/EHTN (accessed February 16, 2012). |
| CBE/CSE | EHTN [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/EHTN. |
| Bluebook | EHTN, http://www.acronymgeek.com/EHTN (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHTN, http://www.acronymgeek.com/EHTN (optional description here) (as of Feb. 16, 2012, 09:42). |
| AMA | EHTN. Acronym Geek. February 16, 2012, 09:42. Available at: http://www.acronymgeek.com/EHTN. Accessed February 16, 2012, 09:42. |