| APA | S-F. (2012, February 14). In Acronym Geek. Retrieved 03:48, February 14, 2012, from http://www.acronymgeek.com/S-F |
| MLA | "S-F." Acronym Geek. (2012). Acronym Geek. 14 Feb 2012 <http://www.acronymgeek.com/S-F>. |
| MHRA | 'S-F', Acronym Geek, 14 February 2012, <http://www.acronymgeek.com/S-F> [accessed 14 February 2012] |
| Chicago | "S-F", http://www.acronymgeek.com/S-F (accessed February 14, 2012). |
| CBE/CSE | S-F [Internet]. Acronym Geek; 2012 Feb 14 [cited 2012 Feb 14]. Available from: http://www.acronymgeek.com/S-F. |
| Bluebook | S-F, http://www.acronymgeek.com/S-F (last visited February 14, 2012). |
| Bluebook: Harvard JOLT | See Acronym Geek, S-F, http://www.acronymgeek.com/S-F (optional description here) (as of Feb. 14, 2012, 03:48). |
| AMA | S-F. Acronym Geek. February 14, 2012, 03:48. Available at: http://www.acronymgeek.com/S-F. Accessed February 14, 2012, 03:48. |