| APA | HAH. (2012, February 14). In Acronym Geek. Retrieved 10:07, February 14, 2012, from http://www.acronymgeek.com/HAH |
| MLA | "HAH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/HAH>. |
| MHRA | 'HAH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/HAH> [accessed 14 February 2012] |
| Chicago | "HAH", http://www.acronymgeek.com/HAH (accessed February 14, 2012). |
| CBE/CSE | HAH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/HAH. |
| Bluebook | HAH, http://www.acronymgeek.com/HAH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HAH, http://www.acronymgeek.com/HAH (optional description here) (as of Feb. 14, 2012, 10:07). |
| AMA | HAH. Acronym Geek. February 14, 2012, 10:07. Available at: http://www.acronymgeek.com/HAH. Accessed February 14, 2012, 10:07. |