| APA | XIU. (2012, February 11). In Acronym Geek. Retrieved 18:09, February 11, 2012, from http://www.acronymgeek.com/XIU |
| MLA | "XIU." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/XIU>. |
| MHRA | 'XIU', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/XIU> [accessed 11 February 2012] |
| Chicago | "XIU", http://www.acronymgeek.com/XIU (accessed February 11, 2012). |
| CBE/CSE | XIU [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/XIU. |
| Bluebook | XIU, http://www.acronymgeek.com/XIU (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, XIU, http://www.acronymgeek.com/XIU (optional description here) (as of Feb. 11, 2012, 18:09). |
| AMA | XIU. Acronym Geek. February 11, 2012, 18:09. Available at: http://www.acronymgeek.com/XIU. Accessed February 11, 2012, 18:09. |