| APA | URK. (2012, February 13). In Acronym Geek. Retrieved 23:44, February 13, 2012, from http://www.acronymgeek.com/URK |
| MLA | "URK." Acronym Geek. (2012). Acronym Geek. 13 Feb 2012 <http://www.acronymgeek.com/URK>. |
| MHRA | 'URK', Acronym Geek, 13 February 2012, <http://www.acronymgeek.com/URK> [accessed 13 February 2012] |
| Chicago | "URK", http://www.acronymgeek.com/URK (accessed February 13, 2012). |
| CBE/CSE | URK [Internet]. Acronym Geek; 2012 Feb 13 [cited 2012 Feb 13]. Available from: http://www.acronymgeek.com/URK. |
| Bluebook | URK, http://www.acronymgeek.com/URK (last visited February 13, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, URK, http://www.acronymgeek.com/URK (optional description here) (as of Feb. 13, 2012, 23:44). |
| AMA | URK. Acronym Geek. February 13, 2012, 23:44. Available at: http://www.acronymgeek.com/URK. Accessed February 13, 2012, 23:44. |