| APA | YUN. (2012, February 10). In Acronym Geek. Retrieved 09:41, February 10, 2012, from http://www.acronymgeek.com/YUN |
| MLA | "YUN." Acronym Geek. (2012). Acronym Geek. 10 Feb 2012 <http://www.acronymgeek.com/YUN>. |
| MHRA | 'YUN', Acronym Geek, 10 February 2012, <http://www.acronymgeek.com/YUN> [accessed 10 February 2012] |
| Chicago | "YUN", http://www.acronymgeek.com/YUN (accessed February 10, 2012). |
| CBE/CSE | YUN [Internet]. Acronym Geek; 2012 Feb 10 [cited 2012 Feb 10]. Available from: http://www.acronymgeek.com/YUN. |
| Bluebook | YUN, http://www.acronymgeek.com/YUN (last visited February 10, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YUN, http://www.acronymgeek.com/YUN (optional description here) (as of Feb. 10, 2012, 09:41). |
| AMA | YUN. Acronym Geek. February 10, 2012, 09:41. Available at: http://www.acronymgeek.com/YUN. Accessed February 10, 2012, 09:41. |