| APA | HKYI. (2012, February 14). In Acronym Geek. Retrieved 18:41, February 14, 2012, from http://www.acronymgeek.com/HKYI |
| MLA | "HKYI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HKYI>. |
| MHRA | 'HKYI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HKYI> [accessed 14 February 2012] |
| Chicago | "HKYI", http://www.acronymgeek.com/HKYI (accessed February 14, 2012). |
| CBE/CSE | HKYI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HKYI. |
| Bluebook | HKYI, http://www.acronymgeek.com/HKYI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HKYI, http://www.acronymgeek.com/HKYI (optional description here) (as of Feb. 14, 2012, 18:41). |
| AMA | HKYI. Acronym Geek. February 14, 2012, 18:41. Available at: http://www.acronymgeek.com/HKYI. Accessed February 14, 2012, 18:41. |