| APA | EHDH. (2012, February 16). In Acronym Geek. Retrieved 05:04, February 16, 2012, from http://www.acronymgeek.com/EHDH |
| MLA | "EHDH." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/EHDH>. |
| MHRA | 'EHDH', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/EHDH> [accessed 16 February 2012] |
| Chicago | "EHDH", http://www.acronymgeek.com/EHDH (accessed February 16, 2012). |
| CBE/CSE | EHDH [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/EHDH. |
| Bluebook | EHDH, http://www.acronymgeek.com/EHDH (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHDH, http://www.acronymgeek.com/EHDH (optional description here) (as of Feb. 16, 2012, 05:04). |
| AMA | EHDH. Acronym Geek. February 16, 2012, 05:04. Available at: http://www.acronymgeek.com/EHDH. Accessed February 16, 2012, 05:04. |