| APA | S. (2012, February 9). In Acronym Geek. Retrieved 08:31, February 9, 2012, from http://www.acronymgeek.com/S |
| MLA | "S." Acronym Geek. (2012). Acronym Geek. 9 Feb 2012 <http://www.acronymgeek.com/S>. |
| MHRA | 'S', Acronym Geek, 9 February 2012, <http://www.acronymgeek.com/S> [accessed 9 February 2012] |
| Chicago | "S", http://www.acronymgeek.com/S (accessed February 9, 2012). |
| CBE/CSE | S [Internet]. Acronym Geek; 2012 Feb 9 [cited 2012 Feb 9]. Available from: http://www.acronymgeek.com/S. |
| Bluebook | S, http://www.acronymgeek.com/S (last visited February 9, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, S, http://www.acronymgeek.com/S (optional description here) (as of Feb. 9, 2012, 08:31). |
| AMA | S. Acronym Geek. February 9, 2012, 08:31. Available at: http://www.acronymgeek.com/S. Accessed February 9, 2012, 08:31. |