| APA | XOAP. (2012, February 16). In Acronym Geek. Retrieved 04:50, February 16, 2012, from http://www.acronymgeek.com/XOAP |
| MLA | "XOAP." Acronym Geek. (2012). Acronym Geek. 16 Feb 2012 <http://www.acronymgeek.com/XOAP>. |
| MHRA | 'XOAP', Acronym Geek, 16 February 2012, <http://www.acronymgeek.com/XOAP> [accessed 16 February 2012] |
| Chicago | "XOAP", http://www.acronymgeek.com/XOAP (accessed February 16, 2012). |
| CBE/CSE | XOAP [Internet]. Acronym Geek; 2012 Feb 16 [cited 2012 Feb 16]. Available from: http://www.acronymgeek.com/XOAP. |
| Bluebook | XOAP, http://www.acronymgeek.com/XOAP (last visited February 16, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XOAP, http://www.acronymgeek.com/XOAP (optional description here) (as of Feb. 16, 2012, 04:50). |
| AMA | XOAP. Acronym Geek. February 16, 2012, 04:50. Available at: http://www.acronymgeek.com/XOAP. Accessed February 16, 2012, 04:50. |