| APA | HEAA. (2012, February 16). In Acronym Geek. Retrieved 02:28, February 16, 2012, from http://www.acronymgeek.com/HEAA |
| MLA | "HEAA." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/HEAA>. |
| MHRA | 'HEAA', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/HEAA> [accessed 16 February 2012] |
| Chicago | "HEAA", http://www.acronymgeek.com/HEAA (accessed February 16, 2012). |
| CBE/CSE | HEAA [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/HEAA. |
| Bluebook | HEAA, http://www.acronymgeek.com/HEAA (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HEAA, http://www.acronymgeek.com/HEAA (optional description here) (as of Feb. 16, 2012, 02:28). |
| AMA | HEAA. Acronym Geek. February 16, 2012, 02:28. Available at: http://www.acronymgeek.com/HEAA. Accessed February 16, 2012, 02:28. |