| APA | EHYD. (2012, February 16). In Acronym Geek. Retrieved 19:36, February 16, 2012, from http://www.acronymgeek.com/EHYD |
| MLA | "EHYD." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/EHYD>. |
| MHRA | 'EHYD', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/EHYD> [accessed 16 February 2012] |
| Chicago | "EHYD", http://www.acronymgeek.com/EHYD (accessed February 16, 2012). |
| CBE/CSE | EHYD [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/EHYD. |
| Bluebook | EHYD, http://www.acronymgeek.com/EHYD (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHYD, http://www.acronymgeek.com/EHYD (optional description here) (as of Feb. 16, 2012, 19:36). |
| AMA | EHYD. Acronym Geek. February 16, 2012, 19:36. Available at: http://www.acronymgeek.com/EHYD. Accessed February 16, 2012, 19:36. |