| Style | Reference Text |
|---|
| APA | XO. (2010, February 9). In Acronym Geek. Retrieved 18:37, February 9, 2010, from http://www.acronymgeek.com/xo |
| MLA | "XO." Acronym Geek. 9 Feb 2010, 18:37. Acronym Geek. 9 Feb 2010 <http://www.acronymgeek.com/xo>. |
| MHRA | 'XO', Acronym Geek, 9 February 2010, 18:37, <http://www.acronymgeek.com/xo> [accessed 9 February 2010] |
| Chicago | "XO," http://www.acronymgeek.com/xo (accessed February 9, 2010). |
| CBE/CSE | XO [Internet]. Acronym Geek; 2010 Feb 9, 18:37 [cited 2010 Feb 9]. Available from: http://www.acronymgeek.com/xo. |
| Bluebook | XO, http://www.acronymgeek.com/xo (last visited February 9, 2010). |
| Bluebook: Harvard JOLT | See Acronym Geek, XO, http://www.acronymgeek.com/xo (optional description here) (as of Feb. 9, 2010, 18:37). |
| AMA | XO. Acronym Geek. February 9, 2010, 18:37. Available at: http://www.acronymgeek.com/xo. Accessed February 9, 2010. |