| APA | S2R. (2012, February 11). In Acronym Geek. Retrieved 23:11, February 11, 2012, from http://www.acronymgeek.com/S2R |
| MLA | "S2R." Acronym Geek. (2012). Acronym Geek. 11 Feb 2012 <http://www.acronymgeek.com/S2R>. |
| MHRA | 'S2R', Acronym Geek, 11 February 2012, <http://www.acronymgeek.com/S2R> [accessed 11 February 2012] |
| Chicago | "S2R", http://www.acronymgeek.com/S2R (accessed February 11, 2012). |
| CBE/CSE | S2R [Internet]. Acronym Geek; 2012 Feb 11 [cited 2012 Feb 11]. Available from: http://www.acronymgeek.com/S2R. |
| Bluebook | S2R, http://www.acronymgeek.com/S2R (last visited February 11, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, S2R, http://www.acronymgeek.com/S2R (optional description here) (as of Feb. 11, 2012, 23:11). |
| AMA | S2R. Acronym Geek. February 11, 2012, 23:11. Available at: http://www.acronymgeek.com/S2R. Accessed February 11, 2012, 23:11. |