| APA | S2M. (2012, February 14). In Acronym Geek. Retrieved 01:16, February 14, 2012, from http://www.acronymgeek.com/S2M |
| MLA | "S2M." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/S2M>. |
| MHRA | 'S2M', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/S2M> [accessed 14 February 2012] |
| Chicago | "S2M", http://www.acronymgeek.com/S2M (accessed February 14, 2012). |
| CBE/CSE | S2M [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/S2M. |
| Bluebook | S2M, http://www.acronymgeek.com/S2M (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, S2M, http://www.acronymgeek.com/S2M (optional description here) (as of Feb. 14, 2012, 01:16). |
| AMA | S2M. Acronym Geek. February 14, 2012, 01:16. Available at: http://www.acronymgeek.com/S2M. Accessed February 14, 2012, 01:16. |