| APA | HAHK. (2012, February 15). In Acronym Geek. Retrieved 06:48, February 15, 2012, from http://www.acronymgeek.com/HAHK |
| MLA | "HAHK." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/HAHK>. |
| MHRA | 'HAHK', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/HAHK> [accessed 15 February 2012] |
| Chicago | "HAHK", http://www.acronymgeek.com/HAHK (accessed February 15, 2012). |
| CBE/CSE | HAHK [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/HAHK. |
| Bluebook | HAHK, http://www.acronymgeek.com/HAHK (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HAHK, http://www.acronymgeek.com/HAHK (optional description here) (as of Feb. 15, 2012, 06:48). |
| AMA | HAHK. Acronym Geek. February 15, 2012, 06:48. Available at: http://www.acronymgeek.com/HAHK. Accessed February 15, 2012, 06:48. |