| APA | YASOS. (2012, February 12). In Acronym Geek. Retrieved 15:11, February 12, 2012, from http://www.acronymgeek.com/YASOS |
| MLA | "YASOS." Acronym Geek. (2012). Acronym Geek. 12 Feb 2012 <http://www.acronymgeek.com/YASOS>. |
| MHRA | 'YASOS', Acronym Geek, 12 February 2012, <http://www.acronymgeek.com/YASOS> [accessed 12 February 2012] |
| Chicago | "YASOS", http://www.acronymgeek.com/YASOS (accessed February 12, 2012). |
| CBE/CSE | YASOS [Internet]. Acronym Geek; 2012 Feb 12 [cited 2012 Feb 12]. Available from: http://www.acronymgeek.com/YASOS. |
| Bluebook | YASOS, http://www.acronymgeek.com/YASOS (last visited February 12, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YASOS, http://www.acronymgeek.com/YASOS (optional description here) (as of Feb. 12, 2012, 15:11). |
| AMA | YASOS. Acronym Geek. February 12, 2012, 15:11. Available at: http://www.acronymgeek.com/YASOS. Accessed February 12, 2012, 15:11. |