| APA | UPRN. (2012, February 10). In Acronym Geek. Retrieved 18:17, February 10, 2012, from http://www.acronymgeek.com/UPRN |
| MLA | "UPRN." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/UPRN>. |
| MHRA | 'UPRN', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/UPRN> [accessed 10 February 2012] |
| Chicago | "UPRN", http://www.acronymgeek.com/UPRN (accessed February 10, 2012). |
| CBE/CSE | UPRN [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/UPRN. |
| Bluebook | UPRN, http://www.acronymgeek.com/UPRN (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, UPRN, http://www.acronymgeek.com/UPRN (optional description here) (as of Feb. 10, 2012, 18:17). |
| AMA | UPRN. Acronym Geek. February 10, 2012, 18:17. Available at: http://www.acronymgeek.com/UPRN. Accessed February 10, 2012, 18:17. |