| APA | YSIS. (2012, February 17). In Acronym Geek. Retrieved 03:03, February 17, 2012, from http://www.acronymgeek.com/YSIS |
| MLA | "YSIS." Acronym Geek. (2012). Acronym Geek. 17 Feb 2012 <http://www.acronymgeek.com/YSIS>. |
| MHRA | 'YSIS', Acronym Geek, 17 February 2012, <http://www.acronymgeek.com/YSIS> [accessed 17 February 2012] |
| Chicago | "YSIS", http://www.acronymgeek.com/YSIS (accessed February 17, 2012). |
| CBE/CSE | YSIS [Internet]. Acronym Geek; 2012 Feb 17 [cited 2012 Feb 17]. Available from: http://www.acronymgeek.com/YSIS. |
| Bluebook | YSIS, http://www.acronymgeek.com/YSIS (last visited February 17, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, YSIS, http://www.acronymgeek.com/YSIS (optional description here) (as of Feb. 17, 2012, 03:03). |
| AMA | YSIS. Acronym Geek. February 17, 2012, 03:03. Available at: http://www.acronymgeek.com/YSIS. Accessed February 17, 2012, 03:03. |