| APA | YUSN. (2012, February 15). In Acronym Geek. Retrieved 08:14, February 15, 2012, from http://www.acronymgeek.com/YUSN |
| MLA | "YUSN." Acronym Geek. (2012). Acronym Geek. 15 Feb 2012 <http://www.acronymgeek.com/YUSN>. |
| MHRA | 'YUSN', Acronym Geek, 15 February 2012, <http://www.acronymgeek.com/YUSN> [accessed 15 February 2012] |
| Chicago | "YUSN", http://www.acronymgeek.com/YUSN (accessed February 15, 2012). |
| CBE/CSE | YUSN [Internet]. Acronym Geek; 2012 Feb 15 [cited 2012 Feb 15]. Available from: http://www.acronymgeek.com/YUSN. |
| Bluebook | YUSN, http://www.acronymgeek.com/YUSN (last visited February 15, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YUSN, http://www.acronymgeek.com/YUSN (optional description here) (as of Feb. 15, 2012, 08:14). |
| AMA | YUSN. Acronym Geek. February 15, 2012, 08:14. Available at: http://www.acronymgeek.com/YUSN. Accessed February 15, 2012, 08:14. |