| APA | EHA. (2012, February 10). In Acronym Geek. Retrieved 10:24, February 10, 2012, from http://www.acronymgeek.com/EHA |
| MLA | "EHA." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/EHA>. |
| MHRA | 'EHA', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/EHA> [accessed 10 February 2012] |
| Chicago | "EHA", http://www.acronymgeek.com/EHA (accessed February 10, 2012). |
| CBE/CSE | EHA [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/EHA. |
| Bluebook | EHA, http://www.acronymgeek.com/EHA (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHA, http://www.acronymgeek.com/EHA (optional description here) (as of Feb. 10, 2012, 10:24). |
| AMA | EHA. Acronym Geek. February 10, 2012, 10:24. Available at: http://www.acronymgeek.com/EHA. Accessed February 10, 2012, 10:24. |