| APA | HKX. (2012, February 13). In Acronym Geek. Retrieved 21:22, February 13, 2012, from http://www.acronymgeek.com/HKX |
| MLA | "HKX." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/HKX>. |
| MHRA | 'HKX', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/HKX> [accessed 13 February 2012] |
| Chicago | "HKX", http://www.acronymgeek.com/HKX (accessed February 13, 2012). |
| CBE/CSE | HKX [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/HKX. |
| Bluebook | HKX, http://www.acronymgeek.com/HKX (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HKX, http://www.acronymgeek.com/HKX (optional description here) (as of Feb. 13, 2012, 21:22). |
| AMA | HKX. Acronym Geek. February 13, 2012, 21:22. Available at: http://www.acronymgeek.com/HKX. Accessed February 13, 2012, 21:22. |