| APA | S^. (2012, February 11). In Acronym Geek. Retrieved 19:49, February 11, 2012, from http://www.acronymgeek.com/S^ |
| MLA | "S^." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/S^>. |
| MHRA | 'S^', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/S^> [accessed 11 February 2012] |
| Chicago | "S^", http://www.acronymgeek.com/S^ (accessed February 11, 2012). |
| CBE/CSE | S^ [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/S^. |
| Bluebook | S^, http://www.acronymgeek.com/S^ (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, S^, http://www.acronymgeek.com/S^ (optional description here) (as of Feb. 11, 2012, 19:49). |
| AMA | S^. Acronym Geek. February 11, 2012, 19:49. Available at: http://www.acronymgeek.com/S^. Accessed February 11, 2012, 19:49. |