| APA | HHT. (2012, February 14). In Acronym Geek. Retrieved 10:24, February 14, 2012, from http://www.acronymgeek.com/HHT |
| MLA | "HHT." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HHT>. |
| MHRA | 'HHT', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HHT> [accessed 14 February 2012] |
| Chicago | "HHT", http://www.acronymgeek.com/HHT (accessed February 14, 2012). |
| CBE/CSE | HHT [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HHT. |
| Bluebook | HHT, http://www.acronymgeek.com/HHT (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHT, http://www.acronymgeek.com/HHT (optional description here) (as of Feb. 14, 2012, 10:24). |
| AMA | HHT. Acronym Geek. February 14, 2012, 10:24. Available at: http://www.acronymgeek.com/HHT. Accessed February 14, 2012, 10:24. |