| APA | XIO. (2012, February 11). In Acronym Geek. Retrieved 22:37, February 11, 2012, from http://www.acronymgeek.com/XIO |
| MLA | "XIO." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/XIO>. |
| MHRA | 'XIO', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/XIO> [accessed 11 February 2012] |
| Chicago | "XIO", http://www.acronymgeek.com/XIO (accessed February 11, 2012). |
| CBE/CSE | XIO [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/XIO. |
| Bluebook | XIO, http://www.acronymgeek.com/XIO (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XIO, http://www.acronymgeek.com/XIO (optional description here) (as of Feb. 11, 2012, 22:37). |
| AMA | XIO. Acronym Geek. February 11, 2012, 22:37. Available at: http://www.acronymgeek.com/XIO. Accessed February 11, 2012, 22:37. |