| APA | XHE. (2012, February 14). In Acronym Geek. Retrieved 11:56, February 14, 2012, from http://www.acronymgeek.com/XHE |
| MLA | "XHE." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/XHE>. |
| MHRA | 'XHE', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/XHE> [accessed 14 February 2012] |
| Chicago | "XHE", http://www.acronymgeek.com/XHE (accessed February 14, 2012). |
| CBE/CSE | XHE [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/XHE. |
| Bluebook | XHE, http://www.acronymgeek.com/XHE (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XHE, http://www.acronymgeek.com/XHE (optional description here) (as of Feb. 14, 2012, 11:56). |
| AMA | XHE. Acronym Geek. February 14, 2012, 11:56. Available at: http://www.acronymgeek.com/XHE. Accessed February 14, 2012, 11:56. |