| APA | HTAS. (2012, February 11). In Acronym Geek. Retrieved 19:57, February 11, 2012, from http://www.acronymgeek.com/HTAS |
| MLA | "HTAS." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/HTAS>. |
| MHRA | 'HTAS', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/HTAS> [accessed 11 February 2012] |
| Chicago | "HTAS", http://www.acronymgeek.com/HTAS (accessed February 11, 2012). |
| CBE/CSE | HTAS [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/HTAS. |
| Bluebook | HTAS, http://www.acronymgeek.com/HTAS (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HTAS, http://www.acronymgeek.com/HTAS (optional description here) (as of Feb. 11, 2012, 19:57). |
| AMA | HTAS. Acronym Geek. February 11, 2012, 19:57. Available at: http://www.acronymgeek.com/HTAS. Accessed February 11, 2012, 19:57. |