| APA | YFS. (2012, February 14). In Acronym Geek. Retrieved 11:12, February 14, 2012, from http://www.acronymgeek.com/YFS |
| MLA | "YFS." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/YFS>. |
| MHRA | 'YFS', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/YFS> [accessed 14 February 2012] |
| Chicago | "YFS", http://www.acronymgeek.com/YFS (accessed February 14, 2012). |
| CBE/CSE | YFS [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/YFS. |
| Bluebook | YFS, http://www.acronymgeek.com/YFS (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YFS, http://www.acronymgeek.com/YFS (optional description here) (as of Feb. 14, 2012, 11:12). |
| AMA | YFS. Acronym Geek. February 14, 2012, 11:12. Available at: http://www.acronymgeek.com/YFS. Accessed February 14, 2012, 11:12. |