| APA | HHEM. (2012, February 9). In Acronym Geek. Retrieved 14:32, February 9, 2012, from http://www.acronymgeek.com/HHEM |
| MLA | "HHEM." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/HHEM>. |
| MHRA | 'HHEM', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/HHEM> [accessed 9 February 2012] |
| Chicago | "HHEM", http://www.acronymgeek.com/HHEM (accessed February 9, 2012). |
| CBE/CSE | HHEM [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/HHEM. |
| Bluebook | HHEM, http://www.acronymgeek.com/HHEM (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, HHEM, http://www.acronymgeek.com/HHEM (optional description here) (as of Feb. 9, 2012, 14:32). |
| AMA | HHEM. Acronym Geek. February 9, 2012, 14:32. Available at: http://www.acronymgeek.com/HHEM. Accessed February 9, 2012, 14:32. |