| APA | URNU. (2012, February 15). In Acronym Geek. Retrieved 10:05, February 15, 2012, from http://www.acronymgeek.com/URNU |
| MLA | "URNU." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/URNU>. |
| MHRA | 'URNU', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/URNU> [accessed 15 February 2012] |
| Chicago | "URNU", http://www.acronymgeek.com/URNU (accessed February 15, 2012). |
| CBE/CSE | URNU [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/URNU. |
| Bluebook | URNU, http://www.acronymgeek.com/URNU (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, URNU, http://www.acronymgeek.com/URNU (optional description here) (as of Feb. 15, 2012, 10:05). |
| AMA | URNU. Acronym Geek. February 15, 2012, 10:05. Available at: http://www.acronymgeek.com/URNU. Accessed February 15, 2012, 10:05. |