| APA | KHEI. (2012, February 12). In Acronym Geek. Retrieved 07:12, February 12, 2012, from http://www.acronymgeek.com/KHEI |
| MLA | "KHEI." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/KHEI>. |
| MHRA | 'KHEI', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/KHEI> [accessed 12 February 2012] |
| Chicago | "KHEI", http://www.acronymgeek.com/KHEI (accessed February 12, 2012). |
| CBE/CSE | KHEI [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/KHEI. |
| Bluebook | KHEI, http://www.acronymgeek.com/KHEI (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, KHEI, http://www.acronymgeek.com/KHEI (optional description here) (as of Feb. 12, 2012, 07:12). |
| AMA | KHEI. Acronym Geek. February 12, 2012, 07:12. Available at: http://www.acronymgeek.com/KHEI. Accessed February 12, 2012, 07:12. |