| APA | HKDH. (2012, February 14). In Acronym Geek. Retrieved 13:50, February 14, 2012, from http://www.acronymgeek.com/HKDH |
| MLA | "HKDH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HKDH>. |
| MHRA | 'HKDH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HKDH> [accessed 14 February 2012] |
| Chicago | "HKDH", http://www.acronymgeek.com/HKDH (accessed February 14, 2012). |
| CBE/CSE | HKDH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HKDH. |
| Bluebook | HKDH, http://www.acronymgeek.com/HKDH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HKDH, http://www.acronymgeek.com/HKDH (optional description here) (as of Feb. 14, 2012, 13:50). |
| AMA | HKDH. Acronym Geek. February 14, 2012, 13:50. Available at: http://www.acronymgeek.com/HKDH. Accessed February 14, 2012, 13:50. |