| APA | DHD. (2012, February 14). In Acronym Geek. Retrieved 10:33, February 14, 2012, from http://www.acronymgeek.com/DHD |
| MLA | "DHD." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/DHD>. |
| MHRA | 'DHD', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/DHD> [accessed 14 February 2012] |
| Chicago | "DHD", http://www.acronymgeek.com/DHD (accessed February 14, 2012). |
| CBE/CSE | DHD [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/DHD. |
| Bluebook | DHD, http://www.acronymgeek.com/DHD (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, DHD, http://www.acronymgeek.com/DHD (optional description here) (as of Feb. 14, 2012, 10:33). |
| AMA | DHD. Acronym Geek. February 14, 2012, 10:33. Available at: http://www.acronymgeek.com/DHD. Accessed February 14, 2012, 10:33. |