| APA | ACHA. (2012, February 15). In Acronym Geek. Retrieved 19:09, February 15, 2012, from http://www.acronymgeek.com/ACHA |
| MLA | "ACHA." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/ACHA>. |
| MHRA | 'ACHA', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/ACHA> [accessed 15 February 2012] |
| Chicago | "ACHA", http://www.acronymgeek.com/ACHA (accessed February 15, 2012). |
| CBE/CSE | ACHA [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/ACHA. |
| Bluebook | ACHA, http://www.acronymgeek.com/ACHA (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, ACHA, http://www.acronymgeek.com/ACHA (optional description here) (as of Feb. 15, 2012, 19:09). |
| AMA | ACHA. Acronym Geek. February 15, 2012, 19:09. Available at: http://www.acronymgeek.com/ACHA. Accessed February 15, 2012, 19:09. |