| APA | UIDN. (2012, February 14). In Acronym Geek. Retrieved 15:26, February 14, 2012, from http://www.acronymgeek.com/UIDN |
| MLA | "UIDN." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/UIDN>. |
| MHRA | 'UIDN', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/UIDN> [accessed 14 February 2012] |
| Chicago | "UIDN", http://www.acronymgeek.com/UIDN (accessed February 14, 2012). |
| CBE/CSE | UIDN [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/UIDN. |
| Bluebook | UIDN, http://www.acronymgeek.com/UIDN (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UIDN, http://www.acronymgeek.com/UIDN (optional description here) (as of Feb. 14, 2012, 15:26). |
| AMA | UIDN. Acronym Geek. February 14, 2012, 15:26. Available at: http://www.acronymgeek.com/UIDN. Accessed February 14, 2012, 15:26. |