| APA | HKD. (2012, February 9). In Acronym Geek. Retrieved 09:36, February 9, 2012, from http://www.acronymgeek.com/HKD |
| MLA | "HKD." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/HKD>. |
| MHRA | 'HKD', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/HKD> [accessed 9 February 2012] |
| Chicago | "HKD", http://www.acronymgeek.com/HKD (accessed February 9, 2012). |
| CBE/CSE | HKD [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/HKD. |
| Bluebook | HKD, http://www.acronymgeek.com/HKD (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HKD, http://www.acronymgeek.com/HKD (optional description here) (as of Feb. 9, 2012, 09:36). |
| AMA | HKD. Acronym Geek. February 9, 2012, 09:36. Available at: http://www.acronymgeek.com/HKD. Accessed February 9, 2012, 09:36. |