| APA | HTP. (2012, February 10). In Acronym Geek. Retrieved 17:11, February 10, 2012, from http://www.acronymgeek.com/HTP |
| MLA | "HTP." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/HTP>. |
| MHRA | 'HTP', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/HTP> [accessed 10 February 2012] |
| Chicago | "HTP", http://www.acronymgeek.com/HTP (accessed February 10, 2012). |
| CBE/CSE | HTP [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/HTP. |
| Bluebook | HTP, http://www.acronymgeek.com/HTP (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTP, http://www.acronymgeek.com/HTP (optional description here) (as of Feb. 10, 2012, 17:11). |
| AMA | HTP. Acronym Geek. February 10, 2012, 17:11. Available at: http://www.acronymgeek.com/HTP. Accessed February 10, 2012, 17:11. |