| APA | HT-A. (2012, February 10). In Acronym Geek. Retrieved 09:50, February 10, 2012, from http://www.acronymgeek.com/HT-A |
| MLA | "HT-A." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/HT-A>. |
| MHRA | 'HT-A', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/HT-A> [accessed 10 February 2012] |
| Chicago | "HT-A", http://www.acronymgeek.com/HT-A (accessed February 10, 2012). |
| CBE/CSE | HT-A [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/HT-A. |
| Bluebook | HT-A, http://www.acronymgeek.com/HT-A (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HT-A, http://www.acronymgeek.com/HT-A (optional description here) (as of Feb. 10, 2012, 09:50). |
| AMA | HT-A. Acronym Geek. February 10, 2012, 09:50. Available at: http://www.acronymgeek.com/HT-A. Accessed February 10, 2012, 09:50. |