| APA | HTKW. (2012, February 16). In Acronym Geek. Retrieved 03:55, February 16, 2012, from http://www.acronymgeek.com/HTKW |
| MLA | "HTKW." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HTKW>. |
| MHRA | 'HTKW', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HTKW> [accessed 16 February 2012] |
| Chicago | "HTKW", http://www.acronymgeek.com/HTKW (accessed February 16, 2012). |
| CBE/CSE | HTKW [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HTKW. |
| Bluebook | HTKW, http://www.acronymgeek.com/HTKW (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTKW, http://www.acronymgeek.com/HTKW (optional description here) (as of Feb. 16, 2012, 03:55). |
| AMA | HTKW. Acronym Geek. February 16, 2012, 03:55. Available at: http://www.acronymgeek.com/HTKW. Accessed February 16, 2012, 03:55. |