| APA | HART. (2012, February 14). In Acronym Geek. Retrieved 22:56, February 14, 2012, from http://www.acronymgeek.com/HART |
| MLA | "HART." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HART>. |
| MHRA | 'HART', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HART> [accessed 14 February 2012] |
| Chicago | "HART", http://www.acronymgeek.com/HART (accessed February 14, 2012). |
| CBE/CSE | HART [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HART. |
| Bluebook | HART, http://www.acronymgeek.com/HART (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HART, http://www.acronymgeek.com/HART (optional description here) (as of Feb. 14, 2012, 22:56). |
| AMA | HART. Acronym Geek. February 14, 2012, 22:56. Available at: http://www.acronymgeek.com/HART. Accessed February 14, 2012, 22:56. |