| APA | XOH. (2012, February 14). In Acronym Geek. Retrieved 04:41, February 14, 2012, from http://www.acronymgeek.com/XOH |
| MLA | "XOH." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/XOH>. |
| MHRA | 'XOH', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/XOH> [accessed 14 February 2012] |
| Chicago | "XOH", http://www.acronymgeek.com/XOH (accessed February 14, 2012). |
| CBE/CSE | XOH [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/XOH. |
| Bluebook | XOH, http://www.acronymgeek.com/XOH (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XOH, http://www.acronymgeek.com/XOH (optional description here) (as of Feb. 14, 2012, 04:41). |
| AMA | XOH. Acronym Geek. February 14, 2012, 04:41. Available at: http://www.acronymgeek.com/XOH. Accessed February 14, 2012, 04:41. |