| APA | XTN. (2012, February 13). In Acronym Geek. Retrieved 21:52, February 13, 2012, from http://www.acronymgeek.com/XTN |
| MLA | "XTN." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/XTN>. |
| MHRA | 'XTN', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/XTN> [accessed 13 February 2012] |
| Chicago | "XTN", http://www.acronymgeek.com/XTN (accessed February 13, 2012). |
| CBE/CSE | XTN [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/XTN. |
| Bluebook | XTN, http://www.acronymgeek.com/XTN (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XTN, http://www.acronymgeek.com/XTN (optional description here) (as of Feb. 13, 2012, 21:52). |
| AMA | XTN. Acronym Geek. February 13, 2012, 21:52. Available at: http://www.acronymgeek.com/XTN. Accessed February 13, 2012, 21:52. |