| APA | EHAK. (2012, February 14). In Acronym Geek. Retrieved 15:05, February 14, 2012, from http://www.acronymgeek.com/EHAK |
| MLA | "EHAK." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EHAK>. |
| MHRA | 'EHAK', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EHAK> [accessed 14 February 2012] |
| Chicago | "EHAK", http://www.acronymgeek.com/EHAK (accessed February 14, 2012). |
| CBE/CSE | EHAK [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EHAK. |
| Bluebook | EHAK, http://www.acronymgeek.com/EHAK (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHAK, http://www.acronymgeek.com/EHAK (optional description here) (as of Feb. 14, 2012, 15:05). |
| AMA | EHAK. Acronym Geek. February 14, 2012, 15:05. Available at: http://www.acronymgeek.com/EHAK. Accessed February 14, 2012, 15:05. |