| APA | XOAC. (2012, February 15). In Acronym Geek. Retrieved 09:49, February 15, 2012, from http://www.acronymgeek.com/XOAC |
| MLA | "XOAC." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/XOAC>. |
| MHRA | 'XOAC', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/XOAC> [accessed 15 February 2012] |
| Chicago | "XOAC", http://www.acronymgeek.com/XOAC (accessed February 15, 2012). |
| CBE/CSE | XOAC [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/XOAC. |
| Bluebook | XOAC, http://www.acronymgeek.com/XOAC (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XOAC, http://www.acronymgeek.com/XOAC (optional description here) (as of Feb. 15, 2012, 09:49). |
| AMA | XOAC. Acronym Geek. February 15, 2012, 09:49. Available at: http://www.acronymgeek.com/XOAC. Accessed February 15, 2012, 09:49. |