| APA | AHEI. (2012, February 16). In Acronym Geek. Retrieved 11:11, February 16, 2012, from http://www.acronymgeek.com/AHEI |
| MLA | "AHEI." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/AHEI>. |
| MHRA | 'AHEI', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/AHEI> [accessed 16 February 2012] |
| Chicago | "AHEI", http://www.acronymgeek.com/AHEI (accessed February 16, 2012). |
| CBE/CSE | AHEI [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/AHEI. |
| Bluebook | AHEI, http://www.acronymgeek.com/AHEI (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, AHEI, http://www.acronymgeek.com/AHEI (optional description here) (as of Feb. 16, 2012, 11:11). |
| AMA | AHEI. Acronym Geek. February 16, 2012, 11:11. Available at: http://www.acronymgeek.com/AHEI. Accessed February 16, 2012, 11:11. |