| APA | XFU. (2012, February 11). In Acronym Geek. Retrieved 21:59, February 11, 2012, from http://www.acronymgeek.com/XFU |
| MLA | "XFU." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/XFU>. |
| MHRA | 'XFU', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/XFU> [accessed 11 February 2012] |
| Chicago | "XFU", http://www.acronymgeek.com/XFU (accessed February 11, 2012). |
| CBE/CSE | XFU [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/XFU. |
| Bluebook | XFU, http://www.acronymgeek.com/XFU (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XFU, http://www.acronymgeek.com/XFU (optional description here) (as of Feb. 11, 2012, 21:59). |
| AMA | XFU. Acronym Geek. February 11, 2012, 21:59. Available at: http://www.acronymgeek.com/XFU. Accessed February 11, 2012, 21:59. |