| APA | HKNL. (2012, February 14). In Acronym Geek. Retrieved 12:54, February 14, 2012, from http://www.acronymgeek.com/HKNL |
| MLA | "HKNL." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HKNL>. |
| MHRA | 'HKNL', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HKNL> [accessed 14 February 2012] |
| Chicago | "HKNL", http://www.acronymgeek.com/HKNL (accessed February 14, 2012). |
| CBE/CSE | HKNL [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HKNL. |
| Bluebook | HKNL, http://www.acronymgeek.com/HKNL (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HKNL, http://www.acronymgeek.com/HKNL (optional description here) (as of Feb. 14, 2012, 12:54). |
| AMA | HKNL. Acronym Geek. February 14, 2012, 12:54. Available at: http://www.acronymgeek.com/HKNL. Accessed February 14, 2012, 12:54. |