| APA | AHDD. (2012, February 17). In Acronym Geek. Retrieved 07:35, February 17, 2012, from http://www.acronymgeek.com/AHDD |
| MLA | "AHDD." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/AHDD>. |
| MHRA | 'AHDD', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/AHDD> [accessed 17 February 2012] |
| Chicago | "AHDD", http://www.acronymgeek.com/AHDD (accessed February 17, 2012). |
| CBE/CSE | AHDD [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/AHDD. |
| Bluebook | AHDD, http://www.acronymgeek.com/AHDD (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, AHDD, http://www.acronymgeek.com/AHDD (optional description here) (as of Feb. 17, 2012, 07:35). |
| AMA | AHDD. Acronym Geek. February 17, 2012, 07:35. Available at: http://www.acronymgeek.com/AHDD. Accessed February 17, 2012, 07:35. |