| APA | XNO. (2012, February 13). In Acronym Geek. Retrieved 21:35, February 13, 2012, from http://www.acronymgeek.com/XNO |
| MLA | "XNO." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/XNO>. |
| MHRA | 'XNO', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/XNO> [accessed 13 February 2012] |
| Chicago | "XNO", http://www.acronymgeek.com/XNO (accessed February 13, 2012). |
| CBE/CSE | XNO [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/XNO. |
| Bluebook | XNO, http://www.acronymgeek.com/XNO (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XNO, http://www.acronymgeek.com/XNO (optional description here) (as of Feb. 13, 2012, 21:35). |
| AMA | XNO. Acronym Geek. February 13, 2012, 21:35. Available at: http://www.acronymgeek.com/XNO. Accessed February 13, 2012, 21:35. |