| APA | EHI. (2012, February 14). In Acronym Geek. Retrieved 19:17, February 14, 2012, from http://www.acronymgeek.com/EHI |
| MLA | "EHI." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/EHI>. |
| MHRA | 'EHI', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/EHI> [accessed 14 February 2012] |
| Chicago | "EHI", http://www.acronymgeek.com/EHI (accessed February 14, 2012). |
| CBE/CSE | EHI [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/EHI. |
| Bluebook | EHI, http://www.acronymgeek.com/EHI (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, EHI, http://www.acronymgeek.com/EHI (optional description here) (as of Feb. 14, 2012, 19:17). |
| AMA | EHI. Acronym Geek. February 14, 2012, 19:17. Available at: http://www.acronymgeek.com/EHI. Accessed February 14, 2012, 19:17. |