| APA | HKP. (2012, February 14). In Acronym Geek. Retrieved 04:22, February 14, 2012, from http://www.acronymgeek.com/HKP |
| MLA | "HKP." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HKP>. |
| MHRA | 'HKP', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HKP> [accessed 14 February 2012] |
| Chicago | "HKP", http://www.acronymgeek.com/HKP (accessed February 14, 2012). |
| CBE/CSE | HKP [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HKP. |
| Bluebook | HKP, http://www.acronymgeek.com/HKP (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HKP, http://www.acronymgeek.com/HKP (optional description here) (as of Feb. 14, 2012, 04:22). |
| AMA | HKP. Acronym Geek. February 14, 2012, 04:22. Available at: http://www.acronymgeek.com/HKP. Accessed February 14, 2012, 04:22. |