| APA | EHUD. (2012, February 15). In Acronym Geek. Retrieved 19:53, February 15, 2012, from http://www.acronymgeek.com/EHUD |
| MLA | "EHUD." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/EHUD>. |
| MHRA | 'EHUD', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/EHUD> [accessed 15 February 2012] |
| Chicago | "EHUD", http://www.acronymgeek.com/EHUD (accessed February 15, 2012). |
| CBE/CSE | EHUD [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/EHUD. |
| Bluebook | EHUD, http://www.acronymgeek.com/EHUD (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHUD, http://www.acronymgeek.com/EHUD (optional description here) (as of Feb. 15, 2012, 19:53). |
| AMA | EHUD. Acronym Geek. February 15, 2012, 19:53. Available at: http://www.acronymgeek.com/EHUD. Accessed February 15, 2012, 19:53. |