| APA | HTA. (2012, February 8). In Acronym Geek. Retrieved 19:56, February 8, 2012, from http://www.acronymgeek.com/HTA |
| MLA | "HTA." Acronym Geek. (2012). Acronym Geek. 8 Feb 2012 <http://www.acronymgeek.com/HTA>. |
| MHRA | 'HTA', Acronym Geek, 8 February 2012, <http://www.acronymgeek.com/HTA> [accessed 8 February 2012] |
| Chicago | "HTA", http://www.acronymgeek.com/HTA (accessed February 8, 2012). |
| CBE/CSE | HTA [Internet]. Acronym Geek; 2012 Feb 8 [cited 2012 Feb 8]. Available from: http://www.acronymgeek.com/HTA. |
| Bluebook | HTA, http://www.acronymgeek.com/HTA (last visited February 8, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTA, http://www.acronymgeek.com/HTA (optional description here) (as of Feb. 8, 2012, 19:56). |
| AMA | HTA. Acronym Geek. February 8, 2012, 19:56. Available at: http://www.acronymgeek.com/HTA. Accessed February 8, 2012, 19:56. |